Chandler and Rachel can't help eating the irresistible cheesecakes intended for a neighbor. Phoebe's former boyfriend returns for one night only, but Joey could ruin the romance. Monica plots revenge on her cousin's wedding day.
Tony is threatened with criminal negligence after the son of a prominent lawyer hangs himself in his cell. Also, Rachel's brother "helps" Tony and Rachel look for a larger house; and Tony devises a strategy for capturing a gang of convenience store stick-up artists and outwits a "jumper" determined to leap off the police department roof.
The commissioner sets out to trap a serial rapist in a Santa Claus mask who's been terrorizing the city. And when a cop who's caught sleeping on duty implies that Commissioner Scali has forgotten how rough midnight tours can be, Tony takes the graveyard shift and gets paired with a tough-talking female officer.
After receiving a pair of baffling death threats, Tony initiates around-the-clock surveillance of his unsuspecting family. In other developments, Tony recalls for son, David, a Kendo match he engaged in while a guest of the Tokyo police force; and uses his unorthodox methods to trap a hunter who killed a deer out of season.
Tony is doubly stymied when identical twins both initially confess to the same murder, then, in a surprise about-face, accuse each other of the crime. Also, Arnie finds romance with a kindred soul, a phone-sex operator named Gloria.
