Screenplay
Writer
An encounter with a blind man ends unexpectedly for Susan Howard. The supposedly helpless man stuns and kidnaps her. The case is handed over by the Home Secretary to Sir John, the head of Scotland Yard. He entrusts Chief Inspector Higgins and Superintendent Lane with the investigation. Their investigations quickly lead Higgins and Lane on the trail of murder, white slavery and blackmail.
Writer
Lady Osborne's gardener becomes the victim of a burglar when he catches him in the Lady's house. Soon more mysterious murders occur and Inspectors Higgins and Lane suspect a connection between the victims and the Lady's long-dead husband.
Screenplay
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.
