The Borgias (2011)

S2E15 The Case of the Foot-Loose Doll

Title: The Mystery of the Wayward Doll Plot: Millie Crest and Fern Driscoll, both facing personal struggles, decide to swap lives. While masquerading as Fern, Millie stabs the dubious private investigator Carl Davis in a moment of self-defense. Shortly after, Davis is found dead, having succumbed to poison stemming from his arm wound. With her freedom at stake, Millie seeks Perry's assistance, offering him a mere 38-cent fee for his legal expertise.