Lowery takes an interested in the murder of Elena, his former girlfriend, who is found dead in an alley, shot three times. The prime suspect is a Latvian businessman who she had often been by Johnson seen with in a coffee bar. Meanwhile, Santoro is asked to help out his trouble-making nephew, Johnny, with a few speeding tickets and ends up losing his temper with the highway cops. Also, Doyle and MacElwaine keep being called to the apartment of a couple who are continuously fighting, where the wife, Jerri, is clearly being beaten and abused, but refuses to press charges against her husband. When Doyle and MacElwaine return for another complaint, they find the woman with another man... and her husband murdered. Elsewhere, Roussakoff deals with problems he has with Kathleen and feels awkward at where they stand in their relationship.