A single-hit ex-rock star, Nick Carbonne has settled into a comfortable married life, a home in a scruffy-but-chic section of southern California, and regular work producing bands whose members dimly recall hearing his gold record in sixth grade. When an old friend and former fellow band member shows up unannounced with his hot girlfriend, Alison, old memories, and older jealousies, are stirred. But Nick in no way anticipates how his life will be shaken when he returns home with Alison one evening to find his wife and Alison's boyfriend naked and oh-so-dead - murdered - their bodies floating in the hot tub.