Even as Lizzie Kitsakis is realizing that her marriage is in trouble, she is working late at the law firm when she gets a call from an old friend asking for help. Zach Grayson says his wife, Amanda, has been found dead in their home, and Zach is the primary suspect. As Lizzie investigates, she learns that Zach and Amanda weren't what they seemed. She is left wondering not only whether her own marriage can be saved but what it means to have a good marriage in the first place.