In flashback, a terrified Frasier (Kelsey Grammer) tells Niles (David Hyde Pierce) that he may have committed a crime. It all begins when Roz (Peri Gilpin) fields a call from a listener who suffers from kleptomania. The ensuing chain of events leads to Frasier's elderly neighbor, Opal (Estelle Parsons), a purloined box, and a truly surprising surprise party. Bernadette Birkit, the wife of Kelsey Grammer's former Cheers co-star George Wendt, appears as Janelle, while another well-known performer delivers the series' very last "guest" phone call. ~ Hal Erickson, Rovi