Jo D. Jonz

The BAU investigates a group of suspects with a pack mentality who are randomly selecting their victims in the nation's capital and murdering them for the thrill of it.

Stillman asks Rush and Valens to reopen the 1987 case of Philadelphia high school basketball star Herman Lester, who was stabbed to death hours after leading his team to the state championship. Lester's son, a current basketball phenomenon playing for the same school as his father, recently received a death threat.

Just 45 minutes away from his scheduled execution, death row inmate Ray Kaspo dies in his cell from a poisoned last meal. Monk is brought in to investigate, but turns down the case - until he receives a call from his old nemesis, Dale "The Whale" Biederbeck (Tim Curry), who is locked up in the same prison as the murdered Kaspo. It seems that Dale is a prime suspect in the murder, and he needs Monk to find the real killer in order to get the authorities off his back. In exchange for Monk's help, Dale promises to provide information relating to the death of Monk's wife, Trudy.

In exchange for covering up of some technical violations of his probation, Nick agrees to help his probation officer purchase a strip club with his girlfriend.

Jones accidentally shoots a 13-year-old boy while pursuing a murder suspect; McDowell and Ortiz search for answers when a man whom police escorted from the scene of a domestic dispute is found dead.