I gave it a chance and watched it twice just to see if I had missed some creative writing, directing, acting, props - anything. Even the actor interviews when asked what the movie meant the most frequent answer, "What ever you make of it." The usual plot device of making the viewer question whether what was being seen was taking place or was just in the mind of our central character just didn't fly. Just a not well thought out mess.
Some examples: 1. The long opening and closing scenes of a forest did not fit with anything in the movie which was centered about an amusement park and hospital. The focal structure in the film, a spiral staircase, seemed like an oddly out of place prop for either location. 2. The visuals of falling feathers and rising/falling bubbles contributed nothing. 3. The floating rabbit backpack, both as a physical form and as a go through walls form, was just meaningless effects. 4. The comatose girl who is presented as supposedly an avenging spirit, she's hooked up to various hospital monitors which if move would set off an alarm, is shown with dirty feet as if she was out in the world avenging. Yet, on one occasion shows up at a person's apartment. 5. The intermingling of the two time periods were at times actual physical events and at times visual or hallucinatory. Not consistent. 6. The police interviews which were intermittently injected to provide some cohesion and clarity, did neither.