"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
Jess Barker
as Arnold Sykes
Mikel Conrad
as Freddie Blair
Vangie Beilby
as Old Lady at Lecture (uncredited)
Marjorie Bennett
as Waitress (uncredited)
Leonard Bremen
as Truck Driver (uncredited)
Paul Brinegar
as Reporter (uncredited)
Frank Cady
Edmund Cobb
as Policeman (uncredited)
Helen Crozier
as Maid (uncredited)
Johnny Duncan
as Bellhop (uncredited)
Adolph Faylauer
as Bald Man at Lecture (uncredited)
Sandra Gould
as Newspaper Girl (uncredited)
Ethyl May Halls
as Woman at Window (uncredited)
Chuck Hamilton
Herbert Heywood
as Attendant (uncredited)
Tommy Ivo
as Horace - Boy at Roadblock (uncredited)
Lyle Latell
George Lynn
Enid Markey
as Clara (uncredited)
Maurice Marsac
as Louis (uncredited)
Charles McAvoy
Ralph Peters
as Portly Man (uncredited)
Jack Rice
as Good Humor Man (uncredited)
Brick Sullivan
Charles Sullivan
as Truck Driver in Cafe (uncredited)
Jim Toney
as Bartender (uncredited)
Harland Tucker
as Clerk (uncredited)
Minerva Urecal
as Gas Station Attendant (uncredited)
Dorothy Vaughan
as Leona (uncredited)
Charles Flynn
Chester Erskine
Director
David Shaw
Novel
Producer
Russell F. Schoengarth
Editor
Screenplay
Walter Scharf
Original Music Composer
Franz Planer
Director of Photography
Irwin Shaw
Emmy Eckhardt
Hairstylist
Emile LaVigne
Makeup Artist
Russell A. Gausman
Set Decoration
David S. Horsley
Visual Effects
Connie Earl
Script Supervisor
Warren Monroe
Gaffer
Dave Ragin
Camera Operator
Special Effects
John Sherwood
Assistant Director
Sherman Clark
Still Photographer
Roland Smith
Grip
Lew Leary
Production Manager
Norman Stuart
Dialogue Coach
Joan St. Oegger
Orry-Kelly
Costume Design
Jack Hively
Associate Producer
Ruby R. Levitt
Leslie I. Carey
Sound
Bud Westmore
Emrich Nicholson
Art Direction
Richard DeWeese
Bernard Herzbrun
Ethmer Roten
Musician