Charmed - Season 2 Episode 20 -

Dr. Curtis Williamson, who treated Piper's infectious fever, unsuccessfully tries to recruit her for follow-up exams in the hospital. He is researching the blood of the Halliwell sisters. When he is accidentally pricked with a blended mixture of their bloods, he gains their powers and eventually starts taking kidneys from criminals to save his sister. Meanwhile, Prue is assigned to photograph Phoebe's idol, the actor Evan Stone, and a paparazzi shots pictures of them, bringing the spotlight on Prue. Piper tries to establish rules for Leo while staying in her house.