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.

Somewhere in Europe, in a city occupied by the Nazis, a gentle school teacher finds himself torn between collaboration and resistance, cowardice and courage.

Wealthy widow Mrs. Bramson notices that her maid is distracted, and when she learns the girl's fiancé, Danny, is the reason, she summons him in. Mrs. Bramson's niece Olivia takes a liking to Danny, and comes to believe that he may have been involved in the disappearance of a local woman.

In the 15th century Richard Duke of Gloucester, aided by his club-footed executioner Mord, eliminates those ahead of him in succession to the throne, then occupied by his brother King Edward IV of England. As each murder is accomplished he takes particular delight in removing small figurines, each resembling one of the successors, from a throne-room dollhouse, until he alone remains. After the death of Edward he becomes Richard III, King of England, and need only defeat the exiled Henry Tudor to retain power.

A behind the times Chicago bootlegger goes to England with his lawyer to claim his estate as the Earl of Gorley.

In 1828, the bankrupt Pyncheon family fight over Seven Gables, the ancestral mansion. To obtain the house, Jaffrey Pyncheon obtains his brother Clifford's false conviction for murder. Hepzibah, Clifford's sweet fiancée, patiently waits twenty years for his release, whereupon Clifford and his former cellmate, abolitionist Matthew, have a certain scheme in mind.

An American girl falls for an RAF pilot while performing at a British music hall.

In 1921, British Lord Athleigh arrives in Dublin with his daughter, Helen, to engage in peace talks. As wanted Irish rebel leader Dennis Riordan is not recognized in public, he is able to move about freely and saves the Athleighs from an assassination attempt by a radical faction. Dennis and Helen meet again and, unaware of his position, Helen falls in love with him. Later when Dennis admits his identity, Helen must make a fateful decision.

Spoiled child Geoffrey Bramer teams up with a pair of small time crooks to pose as an aristocrat and steal jewelry from exclusive shops. During a a caper, Geoffrey is caught and is sentenced to a reformatory where young men are trained to be sailors. He is befriended by model in-mate Terry O'Mulvaney but soon starts to get them both in trouble.

In Victorian England, literary siblings Emily and Charlotte Brontë vie for the affection of the Rev. Arthur Nicholls. Along with their sister Anne, Emily and Charlotte also try to help their tormented brother Branwell, a gifted artist whose life is being destroyed by alcohol.

A group of delinquents on their way to summer camp get stuck in a haunted house.

A love triangle occurs between the publisher's daughter Betty Moody. comic book artist Tim Jones, and the company's wily manipulative manager Hilton Payne. In addition, Betty's dad, Phineas Moody suffers from severe melancholy; and an emergency cure of laughter is required to save his health.

An expedition arrives on an uncharted jungle island to rescue the local natives, led by a jungle boy, from a volcano that is about to erupt.

Newspaper man "Scoop" Hanlon is looking for a way out of his assigned women's interest column. The one chance he has is to spend the night in the "blue room" of a haunted mansion where a number of people are gathered for a party. When one of the guests disappears from his room, "Scoop" decides to get to the bottom of things.

Complications ensue after a radio producer insults a sponsor.

Drummond manages to save a woman from jumping in front of his car but she runs away with his car. He traces her and she asks him to help her out of a dangerous situation.

Pacific pearl diver Duke Slade escapes angry natives by joining a whaler whose dying captain persuades him to marry his daughter who is already being wooed by the first mate.

Scientists assembled to prove their methods are effective in criminal investigation try to solve a series of murders.

Greedy traders have kidnapped a researcher, hoping he will reveal the location of a treasure in a hidden village. Family and friends of the researcher come looking for him. Adventure ensues.

A variety of people are searching for a long-hidden treasure somewhere on an island. Chapters: 1. The Isle of Fear, 2. The Ghost Talks, 3. The Phantom Duel, 4. Buried Alive, 5. The Girl Who Vanished, 6. Trapped by the Flood, 7. The Cannon Roars, 8. The Circle of Death, 9. The Pirate's Revenge, 10. The Crash, 11. Dynamite, 12. The Bridge of Doom, 13. The Mad Flight, 14. The Jaws of Destruction, 15. Justice