I like the child abuser version better. At least that would be unique and feel like it hadn't been toned down to cater to a larger audience. You could go for supernatural child eater and still keep it from feeling toned down though, I suppose. It will all depend on the execution.
Man if you rly want to make a horror game with children, I'd suggest you to take a look at a game called Limbo. Of course the camera, gameplay etc are different from your game, but the way they did it (sounds etc)... is worth taking a look, it's awesome. It's simple but it's easily one of the most horrifying games i've ever played.