Boston Legal (2004) - 2x22 - Ivan the Incorrigible

Shirley Schmidt begins an affair with her ex-husband, Ivan Tiggs (Tom Selleck), believing that he has left his new wife, Missy (Meredith Patterson). Then Missy -- who is still with Ivan -- suspects her husband is cheating on her and asks for Schmidt’s help. Meanwhile, Alan Shore agrees to be co-counsel on an attempted murder case with Jerry Espenson (Christian Clemenson), who has been in therapy since holding a cake knife to Schmidt’s throat.