An Australian woman arrives in London to search for her sister who she finds is involved with a heroin smuggling gang. The gang itself is under attack from an unknown…

Police try to track down a hooded serial killer who murders his victims with a combination of acid and poison gas

The son of a British racehorse owner conspires with a bookie to ruin the odds of his father’s thoroughbred winning an important event.

A strangler is loose on a British estate, and he not only strangles his victims but brands an “M” onto their foreheads before he decapitates them.

A group of hooded vigilantes hang wrong-doers with a rope stolen from Scotland Yard’s Black Museum.

An old man living in an oriental city tells the story of his life to a group of kids: He too was once a young boy by the name of…