Moonlighting: Season 2, Episode 2

2 - 2: The Lady in the Iron Mask

A disfigured lady hires Maddie and David to track down the felon who burned her face with acid years ago. The man has been just released from prison and the pair locates him. Once they report to the dame the man turns up killed. Maddie and David tail the lady and find she's behaving oddly.