 Mouthy star-radio presenter Denise Steiner declared on a TV show  in jest  she would have to kill her birth mother if she were found but refused any contact. While Mark is her radio guest, she gets a call in the long-lasting search for her mom; she doesn t take it serious, but after the show an assistant shows that Joanne Lombardi knew about her secret birthmark. Jesse warns everybody his visiting mama is a terror by being too nice- she surprises even him by offering a full partnership in her private practice in Minneapolis. Denise goes looking for Joanna, finds her dead and is arrested. Mark fills in as radio host, for once proves a slow learner but snoops at the station. Denise s assistant Mando Arriga plants the murder weapon in her flats aquarium, but its obvious place convinces Mark it s a frame: then is appears Joanne was not a mother but turned in the Arriaga family with Immigration, but how can he trap the obvious suspect?