The Ending Explained !
Hello,
extreme horror/thriller buff here especially in the cerebral discipline. I would like to explain the ending for everyone. However, we first should eliminate what it is not.
Theory 1: She Hallucinated the Whole Thing.
Originally, I thought the movie was going to be an (usual) ironic twist where the therapist is going to be the one imagining the whole story with characters and all.
However, we know know this can't be the case for two reasons. A) we know her first therapy session began towards the end of the movie because the doctor announces that in the recording session.We also know B) that she killed her boyfriend thus she didn't make the whole thing up.
Theory 2: She Was Drugged When She Killed her BF and the Scarred Man Planned All of This.
This is probably the most common theory. However- this also has the most wholes in it.
For one, she dreams of situations happening to someone else before it actually happens to her. For example, she imagines her friend getting kidnapped from the psych ward, when she is the done who actually gets kidnapped. Unless she is psychic, that isn't possible. Also, Alex can't really be her father because Alex admits he has no money so how can he pay for the psych ward? This is also evident from the house he lives in. There is no mention of a daughter at all in the therapy sessions. Drugs also can't make you think somebody is someone else entirley, nor could the girl have caused that much damage.
The Ending Explained:
The main character feels guilty of what happened to the girl. Having the new client brings this all back. It should be important to note that Alex got scarred because he was the one actually in the accident but it is placing someone else in that scenario ( just like the main character is doing). It is her herself who is having trips and kills her boyfriend thinking it was someone else. There was no drugs. This also explains the ending. She didn't actually pull the skin off his face because his whole face is torn up and he is sitting down on the bottom floor couch when he supposedly grabbed her from the top floor. In actuality, she killed her friend and she killed him when he came over for a therapy session.