In London, the body of millionaire Hugo Fletcher is found tied to a bed. The police have no doubt that the killer is a woman. The circumstances of the crime and the particular cruelty with which the man was killed suggest the act is personal—possibly revenge. All eyes fall on his wife Laura, who keeps many secrets and has no hurry to tell the police her own story of how her husband turned from a charming flirt into a household tyrant and a cunning criminal. Soon it turns out that Laura isn’t the only woman connected to Hugo—and she isn’t the only one hiding terrifying secrets.