So. Much. Potential.
This is what IMDB says about Apart: Linked by a rare psychological disorder, Noah and Emily must uncover the mystery of a tragic past in order to find hope for the future.
Well. yes and no. In the first scene of the movie they tell you what the "rare psychological disorder" is. It's ICD-10 (F-4), induced delusional disorder. I've learned it as Folie à deux . Basically, it's when two (or more) people have shared delusions. It's one of those disorders that I have a hard time believing is even possible.
The story is told non-chronologically. There are two different sets of flashbacks. One from childhood and one from high school. In present day, Noah has just awoken from a two year coma and can't remember anything about his life. The coma was caused by an "accident"/fire that no one will talk about but Noah won't let it go. Through the flashbacks, we learn what may or may not have happened (remember they may or may not have been delusions).
Like I said, so much potential. I wanted so badly to like the movie. I wanted so badly for it to be good. Sadly, I was disappointed. It left so much unanswered and it was too confusing at times.