Best movies like Thicker Than Water

After finding her boss, a private detective, has committed suicide and has left her his agency, Cordelia Gray is asked to investigate the suicide of the man's son. During the course of her investigation, Cordelia becomes obsessed with the young man's memory and his increasingly suspicious death.

A good ol' boy (McKinnon) gets into trouble with some mobsters, and then must seek assistance from his estranged, identical twin gay brother.

Two homeless vagabonds hide out in a vacant mansion and pose as the residents when prospective lessees arrive and try to rent it.

In the 1940s in the small town of Jupiter Hollow, two sets of identical twins are born in the same hospital on the same night. One set to a poor local family and the other to a rich family just passing through. The dizzy nurse on duty accidentally mixes the twins unbeknown to the parents. Our story flashes forward to the 1980s where the mismatched sets of twins are about to cross paths.

A mother dealing with the death of her young son learns that her niece is in contact with his spirit.

A radio host takes in her troubled sister’s twin daughters, unknowingly putting her family, her friends, and herself at risk.

Kendra has been given an Educator of the Year award and now must prepare a speech to give at a banquet in her honor. She has the support of her husband (and is trying to start a family with him) and best friend Monica, but her life is starting to unravel. Kendra will discover the cause is a long lost twin sister, Amber, who resents her twin's "entitled" position. Kendra must fight her vindictive sister to save her home, husband, job, and finally her life.

The Good Sister follows a couple who is working to put their crumbling marriage back together, when the wife receives a letter informing her that she has a long-lost twin sister. First thinking that the new family member will bring the couple closer together, the husband then begins an affair with the sister and discovers that she is treacherous and dangerous.

After Fran Smith disappears one day in mysterious circumstances, Fran's daughter Deanna and Fran's sister, Sherrie endlessly search for her with enduring hope. The most likely suspect in Fran's disappearance is her husband John, but without a body, neither Deanna or Sherrie can prove that murder, much less a crime, has even been committed. With the support of Sherrie, Deanna embarks on an eleven-year search to trace John's past, eventually uncovering a 25 year-old case of a missing person that involved John's first wife, who too, disappeared under suspicious circumstances. Using this lead, Deanna and Sherrie must use all their evidence to bring John to justice.

Steve Martin and Bonnie Hunt return as heads of the Baker family who, while on vacation, find themselves in competition with a rival family of eight children, headed by Eugene Levy,

Tia and Tony are two orphaned youngsters with extraordinary powers. Lucas Deranian poses as their uncle in order to get the kids into the clutches of Deranian's megalomaniacal boss, evil millionaire Aristotle Bolt, who wants to exploit them. Jason, a cynical widower, helps Tia and Tony escape to witch mountain, while at the same time Tia and Tony help Jason escape the pain of the loss of his wife.

Suave, charming and volatile, Reggie Kray and his unstable twin brother Ronnie start to leave their mark on the London underworld in the 1960s. Using violence to get what they want, the siblings orchestrate robberies and murders while running nightclubs and protection rackets. With police Detective Leonard "Nipper" Read hot on their heels, the brothers continue their rapid rise to power and achieve tabloid notoriety.

Elliot, a successful gynecologist, works at the same practice as his identical twin, Beverly. Elliot is attracted to many of his patients and has affairs with them. When he inevitably loses interest, he will give the woman over to Beverly, the meeker of the two, without the woman knowing the difference. Beverly falls hard for one of the patients, Claire, but when she inadvertently deceives him, he slips into a state of madness.

A sister and her disturbed twin are implicated in a murder and a police detective must figure out which one's the killer.

Nick Carraway, a young Midwesterner now living on Long Island, finds himself fascinated by the mysterious past and lavish lifestyle of his neighbor, the nouveau riche Jay Gatsby. He is drawn into Gatsby's circle, becoming a witness to obsession and tragedy.

An account of the adventures of two sets of identical twins, badly scrambled at birth, on the eve of the French Revolution. One set is haughty and aristocratic, the other poor and somewhat dim. They find themselves involved in palace intrigues as history happens around them. Based, very loosely, on Dickens's "A Tale of Two Cities," Dumas's "The Corsican Brothers," etc.

The tale of two orphan twins with special powers who go looking for their origins. The two are hindered by an avaricious tycoon who only wants to exploit their abilities.

A psychiatrist, whose client commits suicide, finds his family life disrupted after introducing her surviving brother to his wife and daughter.

A garage owner marries a much younger woman. Trouble begins when he becomes friends with a man who has his eyes on his former-showgirl wife.

The inimitable VW Beetle is losing all his races and destined for the scrap heap until mechanic Hank takes him over and gives him a new lease of life. Soon, Herbie is winning again, to the fury of his previous owner, who builds a menacing black bug to challenge Herbie to the ultimate race.

Jonathan MacKinlay is a man trapped inside his home by his own mind. Suffering from agoraphobia, caused by a car accident that took his wife's life; his existence has been reduced to a monotonous repetition of identical days. As his dread and self-loathing escalate, an onslaught of gruesome visions and twisted, waking nightmares begins to gnaw away at his last shred of sanity. Are these ghastly visions imaginary, private demons...or is he being victimized by a very real entity of infinite terror and unspeakable evil?

A twin takes her deceased sister's place as wife of the man they both love.

In this documentary, Alex trusts his twin, Marcus, to tell him about his past after he loses his memory. But Marcus is hiding a dark family secret.

A young boy thinks he's got a lookalike around him, but nobody believes him. Then, he meets Thomas and they switch homes.

A pair of twin girls are separated when their parents divorce. They meet again by accident when they are both sent to the same Summer camp and they start to hatch a plot to get back together. - Steve Crook

John Brock is a down-on-his-luck archaeologist who returns from an expedition to the caves of rural Kentucky after unsuccessfully trying to locate a mysterious relic that his family has sought for generations. Upon his return, John starts to see dream-like visions of a ferocious bird-like creature from ancient folklore. John soon learns that the cave he came into contact with on his last expedition was indeed the cave that contains the relic and also a portal to Hell and a place of worship for the Occult. John discovers that the only way to stop the increasingly realistic visions is to go back to the cave with his family, find the relic once and for all, and destroy it.

During the Great Depression, identical twins are separated at birth. One, Drexel Hemsley becomes a wildly successful '50s rock star, while the other, Ryan Wade, struggles to balance his passion for music and pleasing his parents, who want him to become a preacher. Finally, Ryan rebels against his parents' wishes and launches his own music career -- performing the hits of Drexel Hemsley. Ryan later learns the truth about Drexel when their fates tragically collide.

Twin zoologists lose their wives in a car accident and become obsessed with decomposing animals.

Tom Cameron learns that his twin brother is with a group of German spies. They intend to thwart the government's efforts to round up horses for military service.

Steven and Laura Harding, along with their kids David and Mary, have moved to the quiet community of Stepford. Steven joins the men's club, which is still assimilating their wives into robots. This time, they have begun to turn their out of control teens into robots as well. Once they are assimilated, they are obedient, homework loving, big band dancing droids. Laura, David, and Mary stumble onto this mystery, and they must avoid Steven's plans to turn them into robots.

A woman becomes suspicious when her adopted daughter's birth mother reenters her life and starts to display increasingly erratic behavior.

A small-town district attorney is saddled with several major investigations, including a gambler's murder and a possible insurance scam.

The intimate bond between two identical twins is challenged when one decides to transition from male to female; this is the story of their evolving relationship, and the resurrection of their family from a darker past.

Vanessa and Maria are twins, although not so identical...Maria is a nun while Vanessa is a go go dancer. Leading very different lives they don't interact much, however they are forced to switch lives when Vanessa is chased by Gromek, a powerful drug dealer. The girls must stop Gromek and also save the monastery Maria lives in from being sold.

When her idolized twin sister Audrey dies in a car accident, Laurel decides to take her place. But, as she eases into the life she has always wanted, she must decide between continuing the lie or revealing herself.

The Royal Shakespeare Company act (and sing and dance!) Shakespeare's play about two sets of identical twins, separated at birth and brought together by circumstance.

Polly’s dreams of making it as an actor are shattered when her identical twin sister Amy lands the lead role in a huge TV show. Mistaken for her famous sister at every turn, Polly decides to use Amy’s celebrity for her own advantage – free clothes, free booze, casual sex… with hilarious and disastrous consequences for them both.

Fredric March essays a dual role in this story of a ne'er-do-well who impersonates his brother when the latter dies.

Anna increasingly suspects that her relationship with her longtime partner may not actually be the real thing. In an attempt to improve things, she secretly embarks on a new assignment working at a mysterious institute designed to incite and test the presence of romantic love in increasingly desperate couples.

Maddie, a high-powered marketing executive, is on her way to a client’s wedding but her plans are derailed by car trouble. When a fork in the road leads her to Christmas Valley, a town in love with Christmas, an unexpected encounter and a group of strangers that start to feel like family will have her questioning what she’s really been missing in life.

Successful writer, Martin, is struggling following the death of his wife and child in a car crash. But when he meets grieving mother Lily at a bereavement group, his life changes and he starts to question the circumstances of the accident.

Newlyweds Megan and Andrew have just moved into their dream home with aspirations to start a family. But soon strange events start happening. Voices and shadowy figures haunt Megan, and even Andrew, starts questioning his own sanity as their marriage is being torn apart. The visions grow increasingly real..and threatening, yet Megan is unwilling to relinquish her home. When the appearance of a mysterious priest unveils the truth behind their nightmare, Megan's reality takes a desperate turn that her haunting visions never could have predicted.

10 years after a young girl goes missing on Halloween night, her sister returns to their hometown to look for answers. Along the way she becomes entangled with two mysterious identical twins who run the town's roadside haunted house.

In this erotic mystery, an incredibly handsome photographer and his beautiful supermodel are on the roof of the photographer's building having sex, where an intruder murders them. The police assign Detective, Jessica Brody, to the case, but when she becomes sexually involved with the prime suspect, the photographer's identical twin brother, she risks becoming another victim in a series of murders.

With unexpected expenses coming up and needing money to pay for tuition, Grace switch lives with her wealthy, successful identical twin sister Mercy. Mercy is planning on having one last weekend affair with her secret lover. Drew, Mercy's loving husband never knew of his wife's identical twin. He notices a behavior change in his wife and goes to the extreme to find out the cause. When the unexpected happens, Grace is forced to live a crazy double life. Which life will she choose: Her humdrum life, or her sister's adventurous life being married to a successful business typhoon?

After a near-fatal car accident, Sam wakes to discover he is trapped in an abandoned hospital by mysterious and sinister forces that have no intention of letting him leave…

Sick Boy stars Skye McCole Bartusiak as Lucy, a young woman who steps in for a friend to take a job babysitting a young boy confined to his room due to a mysterious illness. Lucy begins to suspect the child’s mother, played by horror legend Debbie Rochon, is hiding something—the truth turns out to be far worse than she could imagine.

An ex-model is seduced into danger by her psychotherapist boyfriend's wicked identical twin.

Adapted from the best-selling novel by K. J. Benes, A Stolen Life serves as a tour de force for German actress Elizabeth Bergner, whose husband Paul Czinner directed the film. Bergner stars as identical twins Sylvina and Martina, whose mild sibling rivalry intensifies when one of the girls tricks the other's sweetheart Alan McKenzie (Michael Redgrave) into proposing to the wrong twin.

Two identical twin sisters...one is very,very good--one is very, very bad. The good twin is due some big bucks. The bad twin wants 'em. Since they look just alike...look out.