Mid Century Film Productions Ltd.

Caught in a loveless marriage, Dr. John Winnington (Ronald Howard) can't stop himself from falling for his wife's (Mary Laura Wood) younger sister, Christine (Olga Edwardes). But when he suddenly becomes the prime suspect in his wife's tragic murder, John relies on his friend Eric (John Bentley) to clear his name. This classic murder mystery encourages viewers to evaluate all of the clues and guess the killer's identity.

A serial killer is murdering women in the Whitechapel district of London. An American policeman is brought in to help Scotland Yard solve the case.

While watching for a planet that may collide with earth, scientists stationed in Scotland are approached by a visitor from outer space.

An escaped killer hides out by forcing a travelling family to take him with them.

A dashing ex-officer in His Majesty’s army, Captain Adam Corbett (Calhoun) becomes embroiled in intrigue when he agrees to escort Colonel Wilfred Jackson (Ian Hunter) and his daughter Pauline (Patricia Bredin) on a perilous quest for treasure. Possessing one-quarter of a map, they soon rendezvous with three mysterious characters, each with a fragment and a secret agenda. Armed with only a sword and his wits, Corbett battles brigands, soldiers and thieves as he accompanies the expedition to the island of Monte Cristo, where betrayal and fortune await.

A police inspector (Donald Sinden) tracks down Russian anarchist Peter the Painter (Peter Wyngarde) and his gang in circa-1911 London.

After being consulted by a friend concerning a murder case, a private eye learns the friend has become the next victim. Passport to Treason was put together by Robert S. Baker and Monty Berman, the same team who’d later collaborate on the UK TV series The Saint. Rod Cameron stars as an American private eye, stationed in London. For the sake of a murdered friend, the detective takes over the dead man’s case, which turns out to have international ramifications. The villains are members of a phony pacifistic society, all of whom harbor plans for taking over the world.

A chance photograph may reveal a murderer's identity - and someone's after the photographer!