Having just moved to a new town, widow Elaine Freedman and her teenage daughter Justine are greeted by the effusive, terribly nice Dr. Calvin Lawrence. Sensing that Justine is bit testy and out of sorts, Dr. Lawrence recommends that she begin taking a special vitamin which he manufactures in his own home. Before long, Justine is the model of perfection -- just like all the other teenagers in town.
A vain actor, his best friend, and an activist end up at a mutant freak farm run by a weirdo scientist.
A tormented jazz musician finds himself lost in an enigmatic story involving murder, surveillance, gangsters, doppelgängers, and an impossible transformation inside a prison cell.
American tourists David and Jack are savaged by an unidentified vicious animal whilst hiking on the Yorkshire Moors. Retiring to the home of a beautiful nurse to recuperate, David soon experiences disturbing changes to his mind and body.
With no clue how he came to be imprisoned, drugged and tortured for 15 years, a desperate man seeks revenge on his captors.
Two opposing characters are hidden in the person of the inconspicuous London gentleman Dr. Warren and Janus. Lost film.
A doctor's research into the roots of evil turns him into a hideous depraved fiend.
Dr. Henry Jekyll experiments with scientific means of revealing the hidden, dark side of man and releases a murderer from within himself.
Dr. Henry Jekyll believes that there are two distinct sides to men - a good and an evil side. He believes that by separating the two, man can become liberated. He succeeds in his experiments with chemicals to accomplish this and transforms into Hyde to commit horrendous crimes. When he discontinues use of the drug, it is already too late.
Dr. Jekyll believes good and evil exist in everyone and creates a potion that allows his evil side, Mr. Hyde, to come to the fore. He faces horrible consequences when he lets his dark side run amok.
As American policemen in London, Bud and Lou meet up with Dr. Jekyll and Mr. Hyde.
In this Dan Curtis production of the Robert Louis Stevenson classic, Jack Palance stars as Dr. Henry Jekyll, a scientist experimenting to reveal the hidden, dark side of man, who, in the process of his experiment, releases a murderer from within himself.
After a series of scientific experiments directed towards freeing the inner man and controlling human personalities, the kindly, generous Dr Henry Jekyll succeeds in freeing his own alter ego, Edward Hyde, a sadistic, evil creature whose pleasure is murder.
Dr. Cordelier, living in a suburb of Paris, withdraws from society to pursue research into the functioning of the human brain. His lifelong friend, Maître Joly, becomes concerned when Cordelier draws up a will that bequeaths his entire estate to a stranger, Monsieur Opale; he cannot understand why Cordelier defends him, considering Opale attacks women and children. After a colleague is killed, Joly confronts Cordelier and discovers the truth behind his friend's behavior.
Musical version of the story in which Dr. Henry Jekyll experiments with scientific means of revealing the hidden, dark side of man and releases a murderer from within himself.
While conducting a research experiment intended to bring about an alternative to modern surgery, exhausted Los Angeles surgeon Dr. Daniel Jekyll falls asleep and accidentally inhales the white powders, transforming him into a wildly uninhibited nymphomaniac.
Deranged scientist, Gustav Niemann, escapes from prison and overtakes the director of a traveling chamber of horrors, soon reviving the infamous Count Dracula, the frozen Frankenstein Monster, and the Wolf Man.
The only living descendant of Dr. Jekyll and Mr. Hyde makes a deal with the dark side.
When Seth Brundle makes a huge scientific and technological breakthrough in teleportation, he decides to test it on himself. Unbeknownst to him, a common housefly manages to get inside the device and the two become one.
Charles Brady and his mother, Mary, are the last of a dying breed whose needs are not of this world. They are Sleepwalkers - able to stay alive only by feeding on the life-force of the innocent, but destined to roam the earth, avoiding discovery while searching for their next victim. That search takes them to the sleepy little town of Travis, Indiana, where beautiful teenager Tanya Robertson is about to become an unwilling pawn in their nightmarish fight for survival.