The plot started very promising , but it turned too boring very quickly, by the time the twist came, you must have seen it coming, and the "secret" origin of the main character's personality didn't made sense,shocking as it was,
specially the "Make some wrongs to make a right" thing, and it was even worse if you have in mind the timing where it was said. Erick Roberts partner was very unconvincing and also the gun plot lead to a conclusion far too convenient and in fact felt too rushed, like written at the last minute.
They were a lot of elements that could have supplied with a much better plot, and better pacing:
1- A haunted "living murdering house"
2- Satanic Rituals.
3- A Vengeful Ghost
4- A denied guilt in seek for redemption in a very wrong way.
5.-The possibility of a masked psychopathy.
All them where there but mixed so unevenly that in the end none provided to a satisfactory conclusion..
...But that's just my thoughts, see and judge for yourself...