"After running out of funds, Henry Graham, a carefree playboy, plots to marry and murder wealthy botanist Henrietta Lowell."
Walter Matthau
as Henry Graham
Elaine May
as Henrietta Lowell
Jack Weston
as Andy McPherson
George Rose
as Harold
James Coco
as Uncle Harry
Doris Roberts
as Mrs. Traggert
Renée Taylor
as Sharon Hart
William Redfield
as Beckett
Graham Jarvis
as Bo
Jess Osuna
as Frank
David Doyle
as Mel
Fred Stewart
as Mr. von Rensaeller
Mark Gordon
as John
Rose Arrick
as Gloria Cunliffe
Conrad Bain
as Professor Heinrich (uncredited)
William Hickey
as Smith (uncredited)
John O'Leary
as Desk Clerk (uncredited)
Ida Berlin
as Maid (uncredited)
Mildred Clinton
as Mrs. Heinrich (uncredited)
Trent Gough
as Victor the Butler (uncredited)
Carol Morley
as (uncredited)
Cindy Rubenfine
as Dodi Heinrich (uncredited)
Ellen Stretton
Director
Hillard Elkins
Producer
Howard W. Koch
Joseph Manduke
Don Guidice
Editor
Fredric Steinkamp
Gayne Rescher
Director of Photography
Neal Hefti
Original Music Composer
Marion Dougherty
Casting
Edward Beyer
Warren Clymer
Production Design
Richard Fried
Anthea Sylbert
Costume Design
Larry Kostroff
Production Manager
Steven Mussman
Assistant Director
Irving Buchman
Makeup Artist
Phil Naso
Hairstylist
Jack Petty
Steve Barnett
Burt Bluestein
Joe Friel
Set Dresser
Richard Nelson
Bobby Wilson
Lee Bost
Sound
David Dockendorf
Larry Wolff
Sound Recordist
Angelo Corrao
Assistant Editor
Leonard Saltzberg
Nicholas Sgarro
Script Supervisor
Jack Ritchie
Original Film Writer
Screenplay