Started Well - Ended Bad

Rating: 3/10 (9 August 2017)

**Contains spoilers** So I decided to watch this today - I was looking forward to seeing it as have been waiting to watch it for a while but never been the right time.
The start I thought was well done and I wanted to keep watching to see what had happened. It did take a long while to build up though, but it was at a good pace and then all of a sudden you get to the point where he's in the chair about to be operated on and he starts killing everybody whose in his path. 1. He doesn't strike me to be the 'violent' type. 2. He had never been in that part of the house previous so how all of a sudden does he know his way around?
A lot of these sorts of films start off really good and intriguing but then they rush the ending. And want to finish the 3/4 - end part of the film quickly. It gets stupid, surely they could of thought about finishing it cleaner and more idealistic than how it ended.
I was quiet disappointed!