Discovering the body of a woman in the sauna room of her local gym, Inspector Vera Stanhope, hoping that she has uncovered a simple natural-causes death. Strangle bruises reveal that the victim was murdered. Her team begins interviewing staff and those connected to the victim, while Stanhope and colleague Sergeant Joe Ashworth work to find a motive. The victim had worked in social services-- and was involved in a shocking case involving a young child. Is the case related to her death?