Samantha is planning a spectacular party for her husband's birthday. It would be great, she thinks, if she could go back over Marty's life, find the people who've meant the most to him, and bring them to the party. But when she starts her search, she finds those people don't exist. It's a lie. Everything Marty told her is a lie. Marty is a lie. Frightened, Samantha goes to the police. As the truth unfolds, she realizes it's not only her marriage that can end, it's her life. And she knows the exact date it will happen.