Grisly strangulations in London alert Nayland Smith of Scotland Yard to the possibility that fiendish Fu Manchu may not after all be dead, even though Smith witnessed his execution. A killer spray made from Tibetan berries seems to be involved and clues keep leading back to the Thames.

Rival gangsters from Chicago move to London and attempt to extort money from rich Britons.

While treating a policewoman for smoking, hypnotherapist Michael Strother has a telepathic vision of a young girl floating beneath the surface of a stream. The escaped victim of a ritualistic serial killer, the girl has become mute, and Michael is called upon by Scotland Yard to unlock the secrets she holds in order to catch a man who believes he has discovered the key to immortality.

Buster is a small time crook who pulls a big time job. When he finds that the police will not let the case drop, he goes into hiding and can't contact his wife and child. He arranges to meet them in Mexico where he thinks they can begin again, but finds that he must choose between his family and freedom.

A British psychiatrist devises a devilish revenge plot against his wife's lover.

Scotland Yard investigators have to prevent the murder of Victoria Dickman when her name is found on a death list.

London, 1929. Frank Webber, a very busy Scotland Yard detective, seems to be more interested in his work than in Alice White, his girlfriend. Feeling herself ignored, Alice agrees to go out with an elegant and well-mannered artist who invites her to visit his fancy apartment.

Detective Inspector Campbell (Gordon Jackson) looks into the murder of a teacher at a girls school where there are a number of suspects, including her colleagues and the married man she had been seeing.

A Scotland Yard officer investigates the mysterious disappearance of a series of corpses. Based on the novel by Stanisław Lem.

During World War II, a group of British soldiers are captured by the Japanese, tortured and their hands are cut off. Years later, a mad killer terrorizes London by cutting off the hands of his victims.

Sherlock Holmes investigates when young women around London turn up murdered, each with a finger severed. Scotland Yard suspects a madman, but Holmes believes the killings to be part of a diabolical plot.

After an innocent man is executed in a case he was responsible for, a Scotland Yard superintendent finds himself investigating the murder of his key witness.