 Dr. Curtis Williamson, who treated the fever of Piper, unsuccessfully insists in calling her for follow-up exams in the hospital. Actually he is researching the blood of the Halliweel sisters in three monkeys. When is accidentally pricked with a blended mixture of their bloods, he becomes insane and evil, killing criminals to steal their organs for donation. Meanwhile, Prue is assigned to photograph Phoebe s idol, the actor Evan Stone, and a paparazzi shots pictures of them, bringing the spots on Prue. Piper tries to establish rules for Leo while staying in her house.