 Two women are strangled and portions of a poem are written, in lipstick, on their legs. The second is the girlfriend of Dan Williams. He is on edge, wanting to work on the case "or else it s going to work on me." Danno, however, beats up a person who knew his girlfriend before Kono and Chin Ho can stop him. It turns out the real killer is Walter Gregson, who really wants to kill his wife (a friend of the two dead women) and make it appear all the deaths were committed by a psychopath.