While we knew the events of the second movie, things happened in the Neitherworld that we had no way of knowing. While Lydia and Astrid ended up getting away, the trip to the Neitherworld caused more than one small problem they weren't ready for. They are going to have to trust in the demon that they know and fear, or they won't have a fighting chance. Unfortunately, said demon has been stood up twice, and he isn't happy about her skipping out on his bills. A quick wedding might not be the only answer this time. (Since there aren't any plans for a third movie, or at least it isn't showing promise by it's own creator, I wanted to add my own ending to a trilogy that might not ever be. This takes a lot of the strange things that didn't make a lot of sense between movie 1 and movie 2, and fuses them to give a satisfying ending to my own imaginary third movie. I hope you like it because my head cannons would not shut up and demanded I make this.)