Best movies like The Unknown

Julia moves in with her fiancé, David, but his ex-wife and her own haunting past join forces to rock her quiet suburban existence.

A woman falls under the hypnotic spell of a resurrected madman.

A young woman marries against her father's will, but the happy life she expected turns into a series of tragedies.

A young painter stumbles upon an assortment of odd characters at an English estate where he has been hired to give art lessons to beautiful Laura Fairlie. Among them are Anne Catherick, a strange young woman dressed in white whom he meets in the forest and who bears a striking resemblance to Laura; cunning Count Fosco, who hopes to obtain an inheritance for nobleman Sir Percival Glyde, whom he plans to have Laura marry; Mr. Fairlie, a hypochondriac who can't stand to have anyone make the slightest noise; and eccentric Countess Fosco who has her own dark secret. The artist also finds himself drawn to Marion Halcomb, a distant relation to Laura for whom the Count also has plans.

Despite loving another man, a young woman is talked into marrying a wealthy and boorish prince in order to help her financially-strapped father.

When renowned crime novelist Harlan Thrombey is found dead at his estate just after his 85th birthday, the inquisitive and debonair Detective Benoit Blanc is mysteriously enlisted to investigate. From Harlan's dysfunctional family to his devoted staff, Blanc sifts through a web of red herrings and self-serving lies to uncover the truth behind Harlan's untimely death.

After her father is murdered, a girl joins the police force in an effort to track down the killers.

Thirteen years after a dinner party in which the thirteenth guest failed to arrive, the remaining guests are being murdered one by one, and their bodies being placed at the same dinner table in the appropriate seats they occupied thirteen years prior.

Delia Jordan's father is murdered and some very valuable jewelry stolen. She hires The Lone Wolf.

Two men stumble into an old mansion, and get involved with a crazed scientist, torture chambers and sinister medical experiments.

A crazed scientist invents a serum that induces a catatonic state in anyone who gets the injection. He uses the serum to paralyze his enemies, in order to bury them alive.

Gwyn Marcus has always wanted a marriage like her parents. She has just accepted the proposal of her boyfriend Matt, but she has misgivings about their future together. Her fear of commitment grows as she learns of the various affairs that her family is having. With her sister getting married and her brother already married, her mother is growing concerned about Gwyn's being the last single person in the family. But the more she thinks about marriage, the more she must search for the balance between career, marriage and family.

The Wrecker wrecks trains on the L & R Railroad. One of his victims is Larry Baker's father. Baker wants to find the evildoer, among a host of suspects, but it will be difficult since the Wrecker can disguise himself to look like almost anyone

A private detective is hired to find a young heiress but finds himself accused of murder.

A detective tries to prove that a woman is killing her spouses with a spiked umbrella.

Grace is excited for the summer so she can start a business with her friends, but things take an unexpected turn when her mom announces a trip to Paris. There, Grace must learn to get along with her French cousin, Sylvie, and she finds unexpected inspiration for her business. Then, Grace finds out her grandparents bakery, that inspired her to start a business, is closing. Can she and her friends find a way to save it?

A detective investigating kidnapping case discovers the victim, who may be a zombie.

After Nina Leeds finds out that insanity runs in her husband's family, she has a love child with a handsome doctor and lets her husband believes the child is his.

A young girl's parents are killed on a tropical island, and the girl is raised and protected by the jungle animals. When she is found, as a grown woman, she is taken back to the United States to claim her inheritance. There are several people, with vested interests, who stand to gain something if she is shown not to be the missing heir.

In this mystery, a newspaper executive and three of his colleagues conspire to have the owner of the highly-respected London Sun committed to an insane asylum. The hapless publisher manages to escape. Soon after, the four collaborators begin dying one-by-one. Oddly their obituaries appear in a rival publication before they are actually killed.

A San Francisco airplane bound for South America crashes, and among the scorched debris is found a shrunken native human head, neatly packaged. The perplexed police contact a local anthropology museum about this unclaimed piece of grisly baggage, where they intersect with Jack and Doc, two private eyes, called there to meet a mysterious woman who had a case for them and wanted to meet in private.

Life gets complicated for a taxi driver when it's discovered that he's the spitting image of the murdered heir to a fortune.

A private eye and a niece investigate when six World War I veterans start dying in the same week.

A young actress has retired from films to marry the son of a prominent and rich politician in New York City. The father objects strongly to the marriage. The actress is being blackmailed by a second-rate artist who has stolen some letters from her that could be misconstrued. During the payoff, she is knocked unconscious, and awakens to find herself involved in a murder and the police have her marked as the number-one suspect.

Private detective David Ross has two apparently unconnected cases to investigate in the same day. In the first he is hired by a millionaire who paid a large ransom for his kidnapped daughter twelve years before, but she was never seen again. Now a woman has come forward who claims the young girl she raised is the millionaire's missing daughter. Later, Ross is contacted by a retired burlesque dancer who's about to publish her memoirs and possibly reveal the secrets of some important people, but someone is determined to stop her.

Larry Morgan, a private detective, is hired by a woman who wants Larry to trail her husband. The husband is murdered and, shortly afterwards, the wife is also killed. Larry shuffles through a long list of suspects before revealing the killer...

Dwight Stanford and his wife, Penny, are a pair of spendthrifts who can't hold on to money, dependent for support on Dwight's rich uncle, who sends them a monthly allowance. Conrad Norris, Dwight's cousin, disapproves of Dwight and Penny, and resents his uncle's generosity. The uncle is the victim of a hit-and-run accident and, there being no will, Conrad, as next of kin, inherits. Switch, the uncle's lawyer, tells Dwight he is shutout with no hope of appeal. Dwight starts writing mystery novels about a fictional detective named Steven Knight, which become instant hits and the money pours in.

Boston Blackie, in the 11th film of the Columbia series, indulges in some wit-trading with a squirmy spiritualist who deals in blackmail, murder and the occult. "Blackie" out to help his pal, "Runt," recover some jewels, finds himself involved in the homicides, and also finds himself as the prime suspect, and now has to find the real culprit in order to clear himself. So "Blackie,", a man of many talents and already a proved magician from cases past, shows he knows a little bit about dancing skeletons, walking phantoms and spiritualism himself, and holds a séance to unmask the murderer.

Peter Chance suffers a blow to the head and wakes up with amnesia in a luxurious home, where a doctor and several women tell him he's a missing heir who's inherited millions. But Peter soon suspects something is not quite right with their story. He sets out to learn the truth before he's forced to sign a document that purportedly finalizes the transfer of the estate. This drama is based on Hugh Wheeler's novel Puzzle for Fiends.

After a jeweler hires a private detective to help him find $50,000 missing from his company, he is murdered while attending a society party; and the private eye, aided by his comely secretary, vies with a bumbling police detective to find the murderer among several suspects, including the dead man's daughter, her current husband, her former husband, and an ex-convict.

In this entry in the Lone Wolf series, the first to have a soundtrack, the jealousies of the King and the coquettish Queen are chronicled. When His Majesty learns that his wife has given the ring he gave to her to her lover, the King plans a large ball and demands the she wear the token. As her lover is a military attache, he is not in the palace, and the queen must send her lady-in-waiting to bring it back. En route, the lady meets a thief and they team up. She does not know that he has been dispatched by the King to steal ring from the attache.

Sergeant Ken Strange, of the Canadian Mounted Police, and his dog, King, are on the trial of the murderer.

A newly married woman leaves her wealthy husband for a lover who mysteriously disappears. Things start to unravel and become life-threatening on a trip to the husband's family estate.

Attorney Wayne Fletcher and his secretary have an affair. When Wayne's wife is found smothered to death, he becomes the prime suspect. As the police investigate the murder, a psychic with questionable motives tries to contact the deceased woman. Soon, Wayne begins seeing visions of his dead wife, and other people involved with the case begin to be killed, one by one.

Attorney Joshua Scranton hires "Budge" Edwards and Larry Donovan, who has just bought into Edwards' detective agency, to protect Estelle Hudson, a client of his who is to inherit three-million dollars the next Thursday. He tells them he has reason to believe the girl is in danger from five relatives who stand to benefit from her death.