Dr. Heckyl and Mr. Hype

After successfully curing a primate's heart condition, Dr. Henry Jeckyll develops a personality-enhancing serum for himself which inadvertently creates an evil alter ego personality, Edward Hyde, who sets out to terrorize college co-eds.

A housemaid falls in love with Dr. Jekyll and his darkly mysterious counterpart, Mr. Hyde.

To prevent a world war from breaking out, famous characters from Victorian literature band together to do battle against a cunning villain.

When beautiful Carla Purty joins the university faculty, genetic professor Dr. Sherman Klump grows desperate to whittle his 400-pound frame down to size and win her heart. So, with one swig of his experimental fat-reducing serum, Sherman becomes 'Buddy Love', a fast-talking, pumped-up, plumped down Don Juan.

A timid, nearsighted chemistry teacher discovers a magical potion that can transform him into a suave and handsome Romeo. The Jekyll and Hyde game works well enough until the concoction starts to wear off at the most embarrassing times.

Henry Jekyll was always the outsider, a bungling and awkward buffoon, relegated to waiting for his invitation to participate in life that never arrived: until he discovers a medical formula developed by a dead uncle, which claimed to turn 'a man of timid disposition into a bold, fearless dragon'. Taking a draught of the elixir Henry is transformed into suave, sophisticated and highly desirable Teddy Hyde. Armed with his new persona, Teddy is ready to face the world; but is Henry ready for the consequences?

The film was an unauthorized adaptation of Robert Louis Stevenson's novel The Strange Case of Dr. Jekyll and Mr. Hyde, but the source material went unrecognized by some of the German media due to changes in the characters' names. Released in 1920, this is one of Murnau's lost films. While the film itself does not survive, the scripts and related production notes do. Because the film is lost, its full length is unknown. Dr. Warren is the Dr. Jekyll character who changes into Mr. O'Connor, a parallel of Mr. Hyde. This transformation is brought about, not by experimentation with chemicals as in Stevenson's original, but through the supernatural agency of a bust of Janus (the Roman god of duality), which Warren purchases in the opening sequence as a gift for his sweetheart, Jane. When she refuses the gift, horrified, Warren is forced to keep the statuette himself.

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.