New York newspaper reporter Walter Barnett finds himself out of a job after he claims to have found actress Angela Merrova dead in her apartment - only the next day she showed up alive and threatened to sue the paper. Determined to investigate he discovers her involvement with a strange doctor who is an expert on human blood. Barnett then finds a connection to a series of gruesome murders where the victims were all found drained of blood.
Wayne Morris ... Walter 'Wichita' Garrett (onscreen credit reads 'Walter Barnett')
Rosemary Lane ... Joan Vance
Humphrey Bogart ... Dr. Maurice Xavier, aka Marshall Quesne
Dennis Morgan ... Dr. Mike Rhodes
John Litel ... Dr. Francis Flegg
Lya Lys ... Angela Merrova
Huntz Hall ... Pinky
Charles C. Wilson ... Detective Roy Kinca
Vera Lewis ... Miss Sweetman
Howard C. Hickman ...
Olin Howland ... Undertaker
Arthur Aylesworth ... Guide
Cliff Saum ... Detective Sgt. Moran
Creighton Hale ... Hotel Manager
John Ridgely ... Stanley Rodgers