Brahms is the son of the wealthy Heelshire family and a serial killer.  His parents faked his death to protect him after he killed his friend when he was 8 years old, forcing him to live within the walls of the house for 20 years.  His parents left Brahms a "nanny" as a parting gift so they could commit suicide while making sure he was cared for.  He was busy stalking his nanny, moving a doll (which was supposed to represent him as a child) around the house.  He is a possessive, jealous, domine.