Paul Madriani made a deathbed promise to his wife to help her sister Laurel win a custody battle against Jack Vega. But when Jack's new wife is found shot to death in her bathtub -- and Laurel is caught fleeing with crucial evidence -- things heat up. Madriana knows some surprising facts about this case. But there's one thing he doesn't know... Is his sister-in-law, Laurel Vega, guilty of murder?