New York newspaper reporter Walter Barnett is fired after reporting that actress Angela Merrova was found dead in her apartment—only for her to reappear alive the next day and threaten legal action. Determined to uncover the truth, Barnett investigates and discovers Merrova's connection to a mysterious doctor with expertise in human blood. His pursuit leads him to a series of gruesome murders, where all the victims have been found drained of blood. Cast: - Wayne Morris as Walter Garrett (credited as Barnett in the on-screen credits) - Rosemary Lane as Joan Vance - Humphrey Bogart as Dr. Maurice Xavier (a.k.a. Marshall Quesne) - Dennis Morgan as Dr. Mike Rhodes - John Litel as Dr. Francis Flegg - Lya Lys as Angela Merrova - Huntz Hall as Pinky - Charles Wilson as Detective Ray Kincaid - Vera Lewis as Miss Sweetman - Howard Hickman as Chairman (scenes deleted) - Olin Howland as Undertaker - Arthur Aylesworth as Guide - Cliff Saum as Detective Sergeant Moran - Creighton Hale as Hotel Manager - John Ridgely as Rodgers - Joe Crehan as Editor - Glen Langan as Interne - De Wolf Hopper as Interne Runtime: 62 minutes.