While slow to start and a bit tough to follow at times, this movie proposes an interesting and dare I say reasonable concept from the beginning - a darker perspective on having an imaginary friend as a child. But it's so much more than that. Boundaries are pushed and expectations are thrown out the window during the 100min runtime, particularly in the second half. Around 40min in, we finally get a glimpse of why this is deemed a horror movie, and the practical/cosmetic effects are superb, especially for a low budget flick. These visual horror elements are not overdone, but used theatrically moving forward, to punctuate key turning points. I can't say I'm a huge fan of how they ended it, but part of me is inherently a fan of ambiguity over overtness in cinema. Both Miles Robbins and Patrick Schwarzenegger we're great, as was Mary Stewart Masterson. Theoretically there's a lot of room for a sequel, or even a prequel; the creators did a great job composing an expandable universe with this one.