Steven Universe: Nightmare

This will be like a horror movie but it will be have a PG-13 rating so that I won't scare the children.
SYNOPSIS
Steven Universe is going through nightmares and he can't control them. Everybody in Beach City thinks that Steven is losing his mind and he is going crazy like he is on drugs, but only one person believes him and it is Connie and she is the only one that can help him. You'll eventually see Steven fighting his nightmares outside his head.
CHARACTERS
* Steven Universe
* Connie
* Everyone in beach city
* Michael Myers
* Jason Voorhees
* Freddy Kruger
Other horror characters to be added.