Jessica Mayhew is a sharp, successful therapist with a thriving practice and loving family. But the arrival of a new client, actor Gwydion Morgan, coincides with a turbulent moment in her life: her husband has just confessed to a one-night stand with a younger woman. When Jessica recieves a frantic call warning that Gwydion is suicidal, she decides to make a house call. She learns that the family's former au pair drowned in the bay under mysterious...