Steiger is a psychotic master of disguise who stalks and kills various women in this suspenseful cat-and-mouse game. Segal, as the detective assigned to the case, uncovers clues, falls in love, and discovers that his new girl may be the killer's next victim.
Morlar, a second class writer, is brutally killed. His head is totally smashed. When Inspector Brunel, a French cop, working in an exchange program in London, and sergeant Duff look up in his appartment, Morlar comes back to life. He res…