A senator's daughter's corpse is found on the street. Patrick quickly traces the murder to Dr. Michael Rubin's rehab clinic. There's no shortage of suspects and possible motives, including a ruby necklace she stole from her parents to pay for her drugs. Lisbon remains obsessed with Volker, even though judge Davis refuses to help her anymore.
Patrick takes a murder case in Napa so that he can continue his investigation into Sheriff McAllister and Red John, and Rigsby and Van Pelt contemplate their future now that they are free to date after the release of a new office policy.
With the final clue in hand, Jane attempts to gather the remaining Red John suspects - Gale Bertram, Bret Stiles, Reede Smith, Ray Haffner and Tom McAllister - in one place in hopes of finally revealing his identity.