A grieving husband walks into Sylvia Wilcox's private detective agency on Christmas Eve and asks her to solve his wife's murder. The husband, Carson Stark, can't understand why his wife, Liza, was in one of Detroit's worst neighborhoods, or why anyone would want to kill her. The police suspect infidelity, but a review of the case files and information leading up to Liza's murder fails to produce any evidence of disloyalty on Liza's part. As Sylvia works diligently to follow up on any and all leads, she is continuously met with roadblocks thrown up by secrets and lies from Liza's mysterious past.