Best movies like The Demon Within

Timothy Bartlett (Norman Wisdom) is a middle-aged banker who is sent to a seaside resort for a banker's convention. He fears the meetings will be frightfully dull, but things change when two amorous hippie girls take Timothy for a sail on the sea of love. Timothy goes middle-aged crazy, making a spectacle of himself in hippie clothes as he tries to fit into the swinging scene. Nude dips in the ocean are followed and preceded by wild parties as he tries to recapture the days of his flaming youth. After he feels remorse and embarrassment over his behavior, he calls on his wife to join him at the convention to rekindle their love in this lowbrow comedy. The British rock group The Pretty Things provides the music.

A doctor fathers 837 brilliant sons through an artificial insemination program, and every woman wants a donation.

A sudden and mysterious inheritance brings Danny and his friends to Hobb Springs, a forgotten resort deep in the West Virginia hills. Hobb Springs is being looked after under the watchful care of Jackson and Sally, a socially awkward couple who introduce Danny to the long lost family he's never known. A clan by the name of Hillicker. But soon Danny learns his relatives have a different way of living, that for generations, the Hillickers have observed ancient traditions rooted in cannibalism and other taboo rituals.

The sweet and perky Barbara, the sunny Janis, and the responsible Sandra are a trio of young and attractive nurses who work in the psych ward at a hospital. The threesome really have their hands full dealing with nutty patients, creepy stalkers, and black revolutionaries

A group of martial arts students are en route to an island that supposedly is home to the ghosts of martial artists who have lost their honor. A Hitler lookalike and his gang are running a female slavery operation on the island as well. Soon, the two groups meet and all sorts of crazy things happen which include cannibal monks, piranhas, zombies, and more!

The lives of three lonely strangers intersect while commuting on New York's 1 and 9 subway lines.

The friendship of a group of young friends struggling with teen sex, drugs, and work is jeopardized by a romantic interest which may turn pals into bitter rivals.

George Manning is a well-to-do businessman, husband, and father. While his family is away on his birthday, he invites a pair of rain-soaked young women into his house to wait out an evening thunderstorm. The two girls seduce Manning and ultimately kidnap and torture him in his own home.

On his latest private investigation, a shamed former cop connects a murder case to a government conspiracy involving rogue agents from a top spy agency.

A favor for a woman from her past throws the life of a pregnant, retired porn star into chaos.

Desire torments a former cultist taking refuge at the home of a scantily clad woman whose husband is away.

They were looking for the ultimate getaway, they planned for the perfect paradise vacation; what they’re about to get is a trip no one is prepared for. When a group of five girlfriends heads for the tropics, they relax, hit the beach and step out for a night of partying. All is fun and games, until someone gets hurt. Robbed by their tour guide and left for dead, the girls take shelter in a deserted Mexican resort that is haunted by the unspeakable atrocities of past.

At a hidden prison camp deep in the jungles of South East Asia, some devious Vietnamese commies are kidnapping beautiful women and brainwashing them into becoming subliminally-activated suicide bombers to further their evil aims abroad. Help isn't going to be coming anytime soon, so the all-female inmates must engineer their own escape any which way they can...

Lowly hotel clerk Matthew Welch stumbles unto a chance to go on a date with supermodel Hexina by pretending he is someone else. But something goes wrong on the date, she tries to kill him! Soon she kills a couple more people, and unfortunately all the evidence points to Matthew. Gloria, who has been wishing Matthew would ask her on a date, thinks he is innocent and is willing to help, but hardnosed Detective Ferguson is hot on the clues, and closing in on Matthew.

Composed of three disturbingly sensual and terrifying short narratives, unified by the twin themes of sex and death.

Evil voodoo-practicing serial killer Shadow gets executed for murdering pregnant women. Twenty years later the prison Shadow was put to death at has been turned into an experimental women's penitentiary. Tough and fiercely autonomous new inmate Solitaire has some kind of link with Shadow. When Shadow and his lethal shambling zombie minions are resurrected, it's up to Solitaire to stop them.

A young woman learns that she has inherited a Texas estate from her deceased grandmother. After embarking on a road trip with friends to uncover her roots, she finds she is the sole owner of a lavish, isolated Victorian mansion. But her newfound wealth comes at a price as she stumbles upon a horror that awaits her in the mansion’s dank cellars.

Coming back from an extended business trip, Frank discovers that his girlfriend Janie is now working at a new resort hotel where the owner has given her a permanent place to stay, as well as other gifts, in exchange for her affections. The two of them get into a fight and things quickly get out of control and the police are called and in turns into a hostage situation...

While traveling for work in a city far from their homes, a novelist and a corporate accountant find themselves in bed together. Although she’s married, and he’s seeing someone, their intense attraction turns a one-night stand into an unexpected relationship and a respite from the obligations of daily life. Through a series of moments – some profound, some silly, some intensely intimate – we see a portrait of an evolving relationship that could become the most significant one of their lives.

A shy, stuttering professor brings satanist Aleister Crowley back to life.

A road trip to Los Angeles inadvertently leads a young man from Wyoming into a wild maze of psychotic hit-men, racy women, jewel thieves and a salsa band.

Thirteen years old Achille is waiting for his father to return from prison. Will everything go as planned and could the family survive?

A brutally sadistic rape leads to a series of bizarre gory murders during a midnight disco bowl-a-rama at a popular bowling alley. One by one, players of two teams meet blood-drenched gruesome deaths at the hand of a black bowling-gloved masked killer. This alley runs red with blood by sunrise.

Sexy student teachers at Valley High School give private lessons while being terrorized by a mad rapist

Guy Carter, an insecure expectant father unable to find work in his field, accepts a job driving hookers around Los Angeles. One long and crazy evening proves to our hero that he is, in fact, up to the task of fatherhood.

Cyril and Fiona, a free-wheeling married couple, travel to a tropical coastal town to follow their sexual fantasies. Cyril is a manipulator. There, they meet another couple, Catherine and Hugh, and their three children. Hugh is a one-armed photographer who specializes in nude photographs of peasant women. Soon, they decide to live together and an erotic atmosphere develops between them.

An emotionally damaged cop investigating a spree of prostitute killings discovers that the dark side of Las Vegas is decidedly more grim than he ever suspected in director David Heavener's gruesome thriller. When a series of teenaged prostitutes fall to the blade of a murderous madman and authorities are left scratching their heads, Detective Bradley Cooper (Heavener) hits the streets in hopes of taking the killer down. Detective Cooper has problems of his own, though, and upon uncovering what he believes to be the truth behind the ruthless killings, he soon realizes just how deadly knowledge can be.

Ricky, a perverted ice cream shop owner, wants to boost declining sales by renaming his shop to "Scoopettes", and markets it as an adult ice cream store. This sleepy town's ice cream store has started serving a little more than just your typical flavors, dishing out gobs of Virgin Vanilla and Busty Buttercrunch, but wait - what's that? Eeeeek! There's an eyeball staring up from the Cherry Vanilla! The five girls, whom Ricky calls "The Scoopettes", are so hot the ice cream will never stay hard! But everyone leaves with a smile and much, much more! It becomes apparent that someone doesn't like the success that Ricky is experiencing when one of the Scoopettes is found murdered in the freezer. The killing of the girls continues one at a time and the customers find a little extra in their ice scream!

Mary is a horror-movie junkie whose obsession is out of control, leading her over-protective father to ban her from seeing scary flicks. But when she and her friends sneak out to see a film called The Wisher, its creepy antagonist seems to escape into her life and make her darkest desires come true.

A psycho videotapes his dismemberment of strippers.

A young, wealthy club kid's life spirals downward into an out-of-control world of drugs, sex and violence.

Three adventurous space pilots voyage to the all-female planet Andromina, looking forward to the most famous pleasure planet in the galaxy. When they arrive they find that all the women have disappeared, and it's up to them to figure out where the fun has gone.

"My Normal" is the story of Natalie, a young lesbian from the Lower East Side, who's struggling to find a balance between her dreams of becoming a film maker and her lifestyle as a dominatrix. Her exotic looks and unconventional techniques make her one of the most desirable mistresses in the NYC underground. After befriending her weed dealer and igniting a steamy love affair with her new girl, Natalie gets an internship on a real movie set. But if everything she ever wanted is becoming a reality, why is her life falling apart? When it seems that all is lost, Natalie realizes that the only way to turn her dreams into reality is to use her unique talents as a dominatrix to get exactly what she wants.

Bad City is the tangled story of three men's lives: Manning, a dirty, disillusioned cop; Julian, king of drugs, thugs and prostitution; and Frank, a ruthless politician who destroys everything in the way of his ambition.

In a series of sexual mishaps, a high school senior tries to lose her virginity on the last night before graduation.