 Grissom, Catherine and Sara investigate an apparent suicide but soon realize that the death has not only been staged but is almost identical to a case they investigated several months before (in episode 1.1). The case takes yet another turn when Grissom s fingerprint is found on an object from the crime scene. Warrick and Nick, meanwhile, look into a car accident, but the only occupant is in the backseat and no driver is to be found. When fingerprints from the car are examined, they find them embedded with a strange blue dust.