Gideon, Hotchner and their team investigate a series of murders that may have been committed by a pair of suspects working together.
Sydney and Nadia are shocked to discover that Sophia (Sonia Braga American Family Kiss of the Spider Woman ) -- the head of the orphanage that cared for Nadia as a child -- has been severely beaten. But Sloane fears for Nadia's life when he learns the reason for the beating. Meanwhile Dixon is faced with a life-altering moral dilemma while on a mission with Vaughn and Jack's doctor (Michael McKean Best in Show This is Spinal Tap Laverne & Shirley ) offers some advice to his ailing patient.
When a reality TV star is murdered, the CSIs investigate the show's cast, the obsessed fans, and the stars' hidden pasts.
A serial killer begins leaving clues to taunt Grissom; Warrick and Nick clash when they investigate a car accident.