Black Widow

Federal agent Alexandra Barnes suspects that Catherine Petersen is a serial killer who targets wealthy men, marrying and then killing them for their fortunes. However, Catherine’s skill in adopting various disguises and identities makes it impossible for Alexandra to gather evidence through traditional investigative methods. Left with no alternative, Alexandra decides to go undercover, competing for the affections of the same man as Catherine, in the hope that Catherine will make a mistake and expose her real self.