When the corpse of a young woman is found half-buried in a remote area of the Nevada desert, the Grissom and Nick meet Capt. Brass investigate the case. The body is half-naked, with shaved head, severed right hand and branded with number 19 on the upper arm. In the autopsy, Dr. Robbins finds that she had flesh-eating disease, and Grissom questions whether it might be injected into her. Wendy finds that one eyeball belongs to a male and she was tested positive for two drugs. The eye of the previous owner is Jack Landers, who was lobotomized and is totally insane and also branded with the number 13. When the victim is identified as Zoe Kessler, who is the estranged daughter of Lady Heather, Capt. Brass, Grissom and Catherine go to her apartment and find a note and three messages in the answering machine from the Betz Clinic. At the clinic, Catherine and Greg learn that Zoe and Jack participated in a sleep study and the other participants did not have any problem. Now they will search the desert to look for Zoe's missing hand.
—Claudio Carvalho, Rio de Janeiro, Brazil