Among the suspects in a nurse's murder are an actor, a mentally unbalanced man -- and, even more disturbingly, the police officer (Michael Wiseman) investigating the case. In another development, a "good samaritan" bike messenger is killed after stumbling onto a cache of drugs; this time out, it is Jill (Andrea Thompson) who cracks the case. And despite his doctor's advice, Andy (Dennis Franz) refuses to confront the seriousness of his medical condition. ~ Hal Erickson, Rovi