Synopsis

Sheila Green (Yvonne Romain) is killed in a hit-and-run car accident while walking home from a party one night. A year later, her multi-millionaire husband, Clinton (James Coburn),invites a group of friends (James Mason, Raquel Welch, Dyan Cannon, Richard Benjamin, Joan Hackett, and Ian McShane) to spend a week with him on his yacht. Clinton loves to play elaborate games and he assigns everyone a secret - one is an alcoholic, another an informer and so on - that they are not to share with anyone. Every day for the next six days, they will call into a port where they will be given clues to discover one person's secret. The game takes a deadly twist when a murder tales place and it all has to do with the game they have been playing and the secrets that Clinton assigned at the outset.

Sheila Green (Yvonne Romain) is killed in a hit-and-run car accident while walking home from a party one night. A year later, her multi-millionaire husband, Clinton (James Coburn),invites a group of friends (James Mason, Raquel Welch, Dyan Cannon, Richard Benjamin, Joan Hackett, and Ian McShane) to spend a week with him on his yacht. Clinton loves to play elaborate games and he assigns everyone a secret - one is an alcoholic, another an informer and so on - that they are not to share with anyone. Every day for the next six days, they will call into a port where they will be given clues to discover one person's secret. The game takes a deadly twist when a murder tales place and it all has to do with the game they have been playing and the secrets that Clinton assigned at the outset.