Coming home from the factory where she works, the deformed Magdala is noticed by Claudio, a rich scientist, who follows her and accosts her several times before breaking into her apartment. He asks her if she wants to be beautiful, to which she reacts violently, but accepts.

They go to an isolated mansion where Claudio performs the "consciousness transfer". Magdala herself will not change, but she now inhabits and controls another body, a beautiful one. Her own deformed body must be kept alive, if it dies, so does she. So every few days she must tend to it in it's tank, forced to deal with it in disgust.

Because of this, she is completely under the control of Claudio, who is sadistic and plays games with her. Even though she is now able to mingle with the beautiful and the rich, she can never forget her own body waiting, and Claudio's control over it. Although drinking in her new body does not affect her, because her mind is truly situated elsewhere, Claudio doses her real body with alcohol, proving he can do as he pleases with her.

Eventually the reasons for his experiment become clear, her new body is a replica of the body of a female scientist that Claudio once worked with. He intends to have Magdala pretend to be this woman. Magdala hates him but obsesses over him, and now is filled with anger toward the woman whose body she wears. Yet she feels a kinship with her also.

When Magdala and Claudio break into the woman's home, Magdala destroys many of the woman's possessions, jealous and angry. Claudio leaves them, but when the woman returns, Magdala cannot harm her, but instead forms an alliance with her. They go to where Claudio is waiting in a nearby cave, but Magdala finds something there that she didn't expect.

There is not only the tank with her own body in it, but also the body of Claudio. Having been damaged, he too had transferred his consciousness to a new body, which the woman poisons before running away. As Claudio dies, Magdala feels their bond and decides to kill the female scientist.

After killing the scientist, the truth finally becomes clear to her. Magdala is really in her own body. The deformed one she believed she was born in was the fake, and the whole scenario was a charade. It was a giant social experiment into whether enemies could use agents culled from people with deformities to infiltrate and kill important people.