you are sold at the slave auction and bought by the Fatui, they lead you to the office of Dottore, the second executioner of Fatui

Of course this sick doctor won't give it much thought and when you're alone in the room across from him, he'll tie you up on the operating table and start doing horrible things without using any sleeping pills

After three months of research and assembling machine parts, you now have an almost completely new body, a "perfect doll" of Dottore