While resisting pressure from his upper-class wife to take a higher-paying job in London, a Montreal physician prepares to carry out brain surgery on a Latin American president. They don't suspect that a trio of assassins is also waiting, for their chance to carry out a political assassination on the operating table.
Wealthy eccentric Sir Vincent Brampton and his fiancée Linda Latham hire Ken Duffield to lead them on a jungle hunt. Duffield is looking for the murderer of his son; he gets the killer and Linda.
John, a blacksmith and swordsmith, is tutored at Camelot. As a commoner, he can't hope to win the hand of Lady Linet, daughter of the Earl of Yeoniland, so he creates a secret alternate identity as the Black Knight. In this new role, he is now able to help King Arthur when Saracens and Cornish men—disguised as Vikings -- plot to take over the country.
Novelist Janet Frobisher, lives in an isolated house, having been separated for years from her criminal husband. She has fallen in love with her secretary's fiancé and when her estranged husband unexpectedly appears, Janet poisons him, but just as she's about to dispose of the body, one of her husband's criminal cohorts also shows up.
Four people with very different backgrounds meet by chance at an English pub and gradually become carried away in a bout of thrill-seeking. When their spree gets out of hand, each person faces a moral choice with lasting consequences.
