Overview:When the twisted serial killer known as Jack-of-all-trades murders a kindly neighborhood fix-it man (Don Keefer), Sam discovers a pattern -- her tormentor is leaving messages to her through his victims, all of whom had some connection to her. As Sam agonizes over her slain acquaintances, her beau Cooper (guest star A. Martinez, from ""LA Law"") and Bailey try to comfort and protect her, but they can't watch her all the time -- unlike Jack.