A wealthy French widow is poisoned in her home, Inspector Hanaud investigates..
Movie tag line: "WHAT STRANGE MENACE HOVERED OVER THE HOUSE OF MYSTERY?...THRILLS...ROMANCE"
Production companies:
Character: Inspector Hanaud
Character: Betty Harlowe
Character: Ann Upcott
Character: Jim Frobisher
Character: Maurice Thevenet
Character: Mme. Harlow
Character: Francine Rollard
Character: Giradot