A lot of dirty things happen in the long forgotten hospital building in the edge of the city. Unknown by most, it is Mistress Katy Parker's new base of operation, where she does her immoral experiments. Today's subject is slutty little Laurah. Tied to her chair, the girl gets pain and pleasure in equal share until her will breaks and she slowly turns into the Mistress' toy... from that point, it is child play to reprogram her into a horny slut. And that's what Katy exactly does.