One year ago, Sheila--the wife of a mischevious Hollywood producer (James Coburn)--was killed by a hit-and-run driver after an industry party. Now her grieving husband has invited a crowd of actors, directors, and agents (including James Mason, Richard Benjamin, and Dyan Cannon) aboard the yacht named for his late spouse. But it's not a party he has in mind--he knows that one of the guests is responsible for Sheila's death, and he's going to play a deadly game of cat-and-mouse with everyone until the murderer's identity is revealed. And if he exposes some other dark secrets along the way, well, that's just too bad. Little does he know that his clever game of whodunit is going to incite another murder, one he won't be able to solve. This mischievous look at Hollywood insiders was co-written by Stephen Sondheim and horror screen legend Anthony Perkins.