Lip has a new best friend. Ian has a new lover. Chatsworth has a new form of lowlife. Unluckily, all three are the same person, bringing personal trouble for the Gallagher family and business trouble for the Karibs. Meanwhile, Frank takes Kev's sister Kelly in as a lodger, and her numeros romances re-ignites Shelia and Frank's sex life, until Frank discover Kelly has become a prositute. Elsewhere, Marty becomes a handyman, and finds himself in a compromising position with Lillian.