A year after Sheila is killed in a hit-and-run, her multimillionaire husband invites a group of friends to spend a week on his yacht playing a scavenger hunt-style mystery game—but the game turns out to be all too real and all too deadly.
Cast
Richard Benjamin
Tom Parkman
Dyan Cannon
Christine
James Coburn
Clinton Greene
Joan Hackett
Lee Parkman
James Mason
Philip Dexter
Ian McShane
Anthony Wood
Raquel Welch
Alice Wood
Yvonne Romain
Sheila Greene (as Yvonne Romaine)
Pierre Rosso
Vittorio
Serge Citon
Guido
Roberto Rossi
Captain
Elaine Geisinger
American Woman
Elliot Geisinger
American Man
Jack Pugeat
Silver Salesman
Maurice Crosnier
Concierge (uncredited)
Martial
Locksmith (uncredited)
Crew
Herbert Ross
Director, Producer
Anthony Perkins
Writer
Stephen Sondheim
Writer
Edward Warschilka
Editor
Don Zimmerman
Assistant Editor
Gerry Turpin
Director of Photography
William C. Gerrity
Assistant Director
Mishka Cheyko
Assistant Director
Stanley O'Toole
Executive Producer
Stanko Grozdanic
Production Supervisor
Nora Kaye
Production Assistant
Ken Adam
Production Design
Derek V. Browne
Camera Operator
Brian Owen-Smith
Wardrobe Master
Joel Schumacher
Costume Design
Ron Talsky
Costume Design
Mary Bredin
Hairstylist
Alaine Scemama
Hairstylist
Harry Frampton
Makeup Artist
Peter Frampton
Makeup Artist
Richard Oswald
Sound Editor
Derek Holding
Sound Editor
Dan Wallin
Sound Re-Recording Mixer, Scoring Mixer
David Dockendorf
Sound Mixer
Cyril Swern
Sound Recordist
Billy Goldenberg
Original Music Composer
Harry King
Music Editor
Michael Murchan
Rigging Grip
John Jarvis
Set Decoration
Barry Wilkinson
Props
Bob Penn
Still Photographer
Eva Sereny
Still Photographer
Annabel Davis-Goff
Script Supervisor
Fred Stromsoe
Stunts
Tony Teiger
Property Master
Robin McDonald
Clapper Loader
W.C. 'Chunky' Huse
Key Grip
Jack Coggins
Gaffer
Wayne Fitzgerald
Title Designer
Malcolm Stamp
Unit Manager
Hunt Downs
Publicist
Tony Roman
Art Direction
