In a twist on the double indemnity theme, successful, newly divorced, Los Angeles architect, Ray Reardon, meets a beautiful woman, Lena, at a party. Forgiving a bad first impression, Lena agrees to date Ray, which proves to be the beginning of what appears to be a beautiful relationship. They marry and have two children, yet Ray can't stop feeling uneasy about his wife. He feels suspicious and jealous, but is unsure why. When he uncovers some peculiar and unsettling facts about Lena, he discovers that his initial uneasiness was well founded and becomes trapped in a web she has woven almost, but not quite, perfectly.