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...

Fred Engel's father is murdered by Colonel Brinkley in order to acquire a treasure map, however the Colonel only acquires half of it, the other half...

A disfigured killer with glazed-over white eyes is doing the dirty work so that an insurance agent-doctor can get the victims' insurance money.