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.
Not streaming on a subscription service in the US right now.
Starring Richard Benjamin, Dyan Cannon, James Coburn, Joan Hackett, James Mason, Ian McShane, Raquel Welch, Yvonne Romain, Pierre Rosso, Serge Citon