Who Killed the Horne of Plenty?

A sniper kills the head of a model agency during a fashionable lawn party. The suspects include the victim's business partner, his disc jockey brother, one of his top models and her estranged husband. During the course of the investigation, the model accuses Tim of being a dirty cop and having provided inside information as part of an extortion plot. Burke has no choice but to suspend Tim and, when there is another killing and Tim has no alibi, Burke has to work fast before Tim is arrested for murder.