A serial killer named The Shark is terrorizing London by killing his victims with a speargun and then, dressed in a scruba-diver's wetsuit, using the city's sewer tunnels to make his getaway.

A hooded serial killer finds a novel way to murder his victims--he lashes them to death with a whip. The police try to track him down before any more murders occur.

The ghost of a hanged man returns to fulfill his promise. All of his accusers must die!

The country estate of American emigre Abel Bellamy is haunted by the ghost of the Green Archer, a 14th century Robin Hood type figure who terrorised the former lords of the manor. Now, with the gangster coming home on vaguely defined business and his niece Valerie arriving with her adoptive father to take up residence in the adjacent mansion, much to Bellamy's annoyance, the archer has returned. Who is he and what does he want?

A London slasher pack the suitcases of his victims before stabbing them to death in this adaptation of Edgar Wallace's 'Secret of the Black Suitcases.'

A ring of counterfeiters is flooding the country with phony money, and suspicion falls upon a wealthy playboy who may--or may not--have amnesia.

When a wealthy man dies, his avaricious relatives look forward to inheriting all his money. However, he leaves a provision in his will that they all must spend a week together in his castle before they will be able to inherit anything. At the castle (which is cut off from the outside world), the relatives soon begin to be killed off one by one, each strangled with an Indian scarf.

A woman tries to protect her family's name when one relative becomes a murderer.

Three psychotic murderers escape from a mental institution and stalk women in Los Angeles.

Whenever a criminal is killed in London, a black Jaguar is nearby, with a white cat always sitting in the passenger seat. Inspector Higgins and Inspector Lane find a joker card on all the victims. Their investigation leads them to a diamond smuggling ring.

A woman is kidnapped and her identity is stolen by criminals attempting to collect her inheritance.

Panic and fear overtake a small British farming community after a homicidal child-killer escapes from a local mental hospital.