While watching from her train window, Nikki Collins witnesses a murder in a nearby building. When she alerts the police, they think she has read one too many mystery novels. She then enlists a popular mystery writer to help her solve the crime on her own, but her sleuthing attracts the attentions of suitors and killers.
Cast
Deanna Durbin
Nikki Collins / Margo Martin
Ralph Bellamy
Jonathan Waring
David Bruce
Wayne Morgan
George Coulouris
Mr. Saunders, Circus Club Manager
Allen Jenkins
Danny (Waring chauffeur)
Dan Duryea
Arnold Waring
Edward Everett Horton
Mr. Haskell
Patricia Morison
Joyce Willams, Morgan's Girl
Maria Palmer
Margo Martin, Circus Club Singer
Elizabeth Patterson
Aunt Charlotte Waring
Samuel S. Hinds
Mr. Wiggam, Waring Lawyer
William Frawley
Desk Sgt. Brennan
Jacqueline deWit
Miss Fletcher, Morgan's Secretary
Lash LaRue
Circus Club Waiter / Henchman
Jane Adams
Circus Club Photographer
Thurston Hall
Josiah Waring
Ben Carter
Maxwell
Mabel Forrest
Wife
Barbara Bates
Hat Check Girl
Chester Clute
Train Conductor (uncredited)
Joseph Crehan
Train passenger (uncredited)
Fred Aldrich
Unknown
Ernest Anderson
Unknown
Carl Andre
Unknown
Bobby Barber
Unknown
Eddie Bartell
Unknown
Eddie Bruce
Unknown
Charles Cane
Unknown
James Carlisle
Unknown
Nora Cecil
Unknown
George Chandler
Unknown
André Charlot
Unknown
Martin Cichy
Unknown
Tom Coleman
Unknown
Oliver Cross
Unknown
Charles Dechamps
Unknown
Jack Deery
Unknown
Robert Dudley
Unknown
Tom Dugan
Unknown
Eddie Dunn
Unknown
Jay Eaton
Unknown
Sarah Edwards
Unknown
Harry Evans
Unknown
Franklyn Farnum
Unknown
Carl Faulkner
Unknown
Al Ferguson
Unknown
Clyde Fillmore
Unknown
Sam Finn
Unknown
Mary Forbes
Unknown
George Golden
Unknown
Ethyl May Halls
Unknown
Sam Harris
Unknown
Dick Hirbe
Unknown
Stuart Holmes
Unknown
Jack W. Johnston
Unknown
Philip Kieffer
Unknown
Mike Lally
Unknown
Perc Launders
Unknown
Ethelreda Leopold
Unknown
George J. Lewis
Unknown
George Lloyd
Unknown
Lock Martin
Unknown
Sam McDaniel
Unknown
Matt McHugh
Unknown
Bert Moorhouse
Unknown
William H. O'Brien
Unknown
Frank O'Connor
Unknown
Kathleen O'Malley
Unknown
Ralph Peters
Unknown
Rose Plumer
Unknown
Albert Pollet
Unknown
Karen Randle
Unknown
Bob Reeves
Unknown
Addison Richards
Unknown
Cyril Ring
Unknown
Bert Roach
Unknown
Jeffrey Sayre
Unknown
Charles Sherlock
Unknown
Brick Sullivan
Unknown
Jean Trent
Unknown
Leo White
Unknown
Eric Wilton
Unknown
Florence Wix
Unknown
Crew
Charles David
Director
Edmund Beloin
Screenplay
Robert O'Brien
Screenplay
Ted J. Kent
Editor
Elwood Bredell
Director of Photography
Felix Jackson
Producer
Howard Greer
Costume Design
Miklós Rózsa
Original Music Composer
Russell A. Gausman
Set Decoration
Leslie Charteris
Original Story
Robert Clatworthy
Art Direction
John B. Goodman
Art Direction
