put on a happy face

"Put on a happy face and everything will be okay" A young boy who never left his parents basement because of his face nobody didn't realised thag his Family had a son cause, well he was locked up for what, his face? His family calls him a freak and a monster he wears a yellow mask with a smile but the only time he was able to come out of the basement is when it was his birthday and what happens when he turned 17 and he fınally snaps? He murderer his family ripped their eyes out and wrote on the wall with the saying "Put on a happy face and everything will be okay"