The BAU team goes head-to-head with a serial killer (Keith Carradine) who has tortured and killed more than 100 people over 30 years.
When a vigilante dressed as a comic book hero is murdered, it's up to Holmes and Watson to find the man's true identity and locate his killer; Morland tries to charm Watson into doing him a favor.
Reese and Finch wonder if they should intervene when they learn that a mob enforcer's life is in danger; Finch turns to an unexpected source for help.
Larry plays the hero; a nosy waiter sabotages Jeff's courtship of Ricky Gervais.
Hannah goes out for drinks with a new coworker before attending an unusual art show; Adam is unsettled by Mimi-Rose's friend, Ace; Shoshanna helps Ray with his community board election campaign.