Frozen: The Creepypasta version

Slendog had enough of Writer and BEN, refusing to admit their feelings, so he sent them into Frozen, with help of Jeff to hopeful get them to finallh admit that they love each other. But happens when a certain eight year old called Sally sends them into different movies? A sh*t ton of murders and singing! (P.s. this is book 1 of my movie musicals :) so send me other musical movies, except High school musical -_-)