Model for Murder - S4.E7

Investigating the killing of a fashion model, who had also been working as a high-class prostitute, Stacy's contact, another model, is too found murdered in similar circumstances. Stacy befriends the murdered girl's room-mate, and goes undercover as a model at the company that the girls belonged to, to try and root out the killer, who is using sale of the girls to ensure a large order of costumes. But Stacy's handling of the case causes some friction between Corrigan and herself...