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.
Genres:
Richard Benjamin as Tom
Dyan Cannon as Christine
James Coburn as Clinton
Joan Hackett as Lee
James Mason as Philip
Ian McShane as Anthony
Raquel Welch as Alice
Yvonne Romain as Sheila
Pierre Rosso as Vittorio
Serge Citon as Guido
Roberto Rossi as Captain
Elaine Geisinger as American Woman
Elliot Geisinger as American Man
Jack Pugeat as Silver Salesman
Maurice Crosnier as Concierge (uncredited)
Martial as Locksmith (uncredited)
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