My film: Man trapped in room. Psychological thriller. Views needed

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here's a synopsis: The film begins as a man is stumbling around in the dark. He pulls a lighter out of his back pocket and investigates his surroundings. He eventually finds his way to a light switch which when hit reveals he is trapped in a small room filled with supplies. The man finds his wallet in a box, revealing him to be a thirty two year old man named Henry.
The only exit is a blacked out door with a key coded lock. After spending hours frantically trying to break down the door Henry realises it won’t budge. He spends days hacking at the door, but eventually he discovers he has several numbers written across his harms. Four of which are the correct code to grant him freedom. As time passes by and many failed attempts at opening the door, his food and water supply is running sparse and he begins suffering from headaches and vague visions. Months pass by and the visions are getting more and more vivid and violent. They become nightmares.
The key to opening the door and the mystery of why he is in this room is hidden deep in his subconscious. Only these visions can help him escape.
The mystery is revealed at the end through an extensive flashback that Henry killed his wife when he found out she was pregnant from a rapist he knew nothing about. He couldn't handle the pain she went through and the pain he has of not being able to give her the thing she wants the most; a child. Henry snaps and murders her and then he can’t handle the guilt so he locks himself away in the panic room he built in him and his wife’s home.


Dexter: "I am a father, a son.. and a serial killer"