The return of Silky, a former pimp now seeking to live on the straight and narrow, leads Andy and Bobby to a guy who fits the description of a serial rapist. Later that night, a young woman is raped and murdered by a fake deliveryman, and the cops figure out he was trying to kill one of his previous victims. They set up a sting where the rapist attacks Diane but is quickly subdued (and nearly beaten to a pulp) by Bobby, who later puts his feelings aside long enough to scare the guy into confessing. Diane has a difficult enough day because her alcoholic father got arrested for trashing a bar her beaten-down brother works at. She gets the charges dropped and the family tries to have a quiet evening together, but her father's anger towards her helpless mom and broken brother leads her to flee, then drink before she calls Bobby to come help her. James, Greg and Adrienne catch a case where a schlub has repeatedly survived assassination attempts. They find out it's his rotten wife who's behind the attacks, but he won't believe it or press charges. And Adrienne fends off Greg's awkward efforts to set her and James up on a date by telling Greg she's a lesbian.