Adaptations of mystery stories written by Sir Arthur Conan Doyle's contemporary rivals in the genre.

When his brother disappears, Robert Manning pays a visit to the remote country house he was last heard from. While his host is outwardly welcoming - and his niece more demonstrably so - Manning detects a feeling of menace in the air with the legend of Lavinia Morley, Black Witch of Greymarsh, hanging over everything.

A professor of astronomy helping on a missile development program. An old friend of his is a Russian chess champion. The Russian is working with shady businessman Marek and they plan to kidnap the professor and make it look as though he has defected to the Soviet Union.

Hugo Barrett is a servant in the Chelsea home of indolent aristocrat Tony. All seems to go well until the playboy’s girlfriend Susan takes a dislike to the efficient employee. Then Barrett persuades Tony to hire his sister Vera as a live-in maid, and matters take another turn for the worse…

The adventures of Interpol policemen Duval and Mornay as they fought against international drug-running, homicide, robbery and forgery.

The adventures of privateer Captain Dan Tempest and his crew of former pirates as they make their way across the seven seas in The Sultana.

A trilogy of stories of well-off youths who commit murders. In the French episode, a group of high school students kill one of their colleagues for his money. In the Italian episode, a university student's involved in smuggling cigarettes. In the English episode, a lazy poet finds the body of a woman on the downs, and tries to sell his story to the press.

An Irish "oracle" foretells the next day's track results to a newspaperman, resulting in a national uproar.

Burt Lancaster plays a pirate with a taste for intrigue and acrobatics who involves himself in the goings on of a revolution in the Caribbean in the late 1700s. A light hearted adventure involving prison breaks, an oddball scientist, sailing ships, naval fights and tons of swordplay.

A story of robots leading a revolution against their human creators. It explored dehumanization through technology and the failure of a technologically driven utopia.