This film seemed atmospheric and tense, but it was a little boring and the ending was anticlimactic. The music came across as intrusive and annoying - there was no point of the high pitched electric guitars used in dramatic scenes. Smoking scenes were just too much and they became distracting.
This might be recommended for thriller fans only, but people who are not in to this genre will become very bored, as this is a slow-burn type of thriller. It's mostly a drama with the brother slowly and slowly starting to suspect that the serial killer is dangerous.
Between the two there is a lot of talking scenes, and at times there is tension. There is also a erotica, between his sister and the killer, towards the middle-end of the film. I believe the whole romance between the two was forced.
The film has the annoying cliché where the main character thinks a person is crazy and his friends don't believe it (here, it's the sister), even though the main character is always right.
The ending was awful. I hated how it just abruptly ended. Who stabbed who? There was some bad editing there.