Catherine Sykes disappears after a midnight drive with Professor Andrew Gentling . When she's presumed murdered, his friend Martha convinces him that he's a prime suspect and should investigate before he's arrested.
William Powell
as Andrew Gentling
Shelley Winters
as Catherine Sykes
Marsha Hunt
as Martha Wier
Dorothy Hart
as Helen Gentling
James Gleason
as Captain Gledhill
Felix Bressart
as Professor Morris Avrum
Art Baker
as Henry Pritchard
Sheldon Leonard
as Detective Pacciano
Howard Freeman
as Dr. Markheim
Houseley Stevenson
as Montgomery Thatcher
Paul Harvey
as Mr. Arnspiger
Francis Pierlot
as Dr. Herbert Watson