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.
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)
