James Coburn stars as a Hollywood bigwig who hosts six pals for a week on his yacht in the south of France. He loves intricate puzzles and has planned a clever game that will identify the killer of his late wife.
A famous cast is the highlight of this film and while it oozes glamour and Hollywood in-jokes, my mind wandered and it took three tries to finish watching it. Coburn is robust and charismatic and also convincingly sadistic. Dyan Cannon is good as an airhead agent but her never-ending, raucous guffaws are tiresome. Ian McShane and Raquel Welch are good as minor characters. Joan Hackett, Richard Benjamin, and James Mason have the most screen time; they are all excellent in well-developed roles and a pleasure to watch.
In my opinion, the game that the guests are playing is too convoluted and pointless to follow; there are constant red herrings and it doesn't amount to much in the end. One of the stars leaves halfway through and is greatly missed. Plot holes abound and it's hard to identify with any of the characters or the story.
This film is recommended for those who like complex puzzles and clues. I thought it was just okay.