Picket Fences (1992)

Season 1: Episode 1

A beloved local man is killed during a stage production of The Wizard of Oz. Suspicion initially falls on the town pharmacist when the sheriff learns the dead man was having an affair with the pharmacist's daughter. The dead man's wife confesses but her confession is suppressed in court. She is then murdered and the Sheriff's department discovers that she and the pharmacist conspired to kill her husband and then the pharmacist killed her.