Brahms Heelshire is the son of wealthy parents who, after Brahms killed his childhood friend in an outburst, faked their own son's death by setting his bedroom on fire and making him spend his life in the walls of their house, hidden away from the outside world. Brahms is a deeply troubled man who behaves like hes still that spoiled little boy he once was. He's shy but doesn't refrain from using brute force to get what he wants. 
Hes prone to emotional outbursts and desperate to be loved.