Simone and Sipowicz investigate the sexual assault of schoolgirl. Gina comes downstairs and Geri goes upstairs. A strange man that Andy had committed to Bellevue four years ago appears in the squad room and makes a minor scene. Diane watches Jimmy turn violent for a minor mishap that occurred while rollerblading. Jimmy sees that Greg has recognized Diane on the street; she plays it off and may have been successful. The strange man returns and Andy thinks that he might be trying to communicate something about his mother. The schoolgirl commits suicide in front of Andy, Bobby, her mother and numerous witnesses. Diane talks with her former and now temporary boss about undercover work, Bobby and things in general. Andy takes the strange man to his building and finds his mother in a dumpster, dead from a heart attack. Despite the fact that no legal recourse can be taken against them, Sylvia reads the schoolboys the riot act. The man that Jimmy beat up comes to the squad to file a complaint.