I never watch Thrillers nor am I movie person....but this one i absolutely love. So many say that there is no plot but there is one basically killer see person that found out about killers victim and chases person. (Possible spoilers) What you don't see is reading/watching between the lines of the movie for all the characters. First off the killer, props on the actor for portraying a very good killer, to me there are subtle and obvious clues that the killer enjoys toying with his victim like Clips of him devilishly smiling when the main character struggles for help. Laughing while chasing her. Smirking when he gets away with things and being one step ahead of his victim.Not only that, you can assume he had trauma in life as he quoted he doesn't like being beat up or he has no mom/dad. Meaning he could've been abused growing up by the parents leading up to his ways. By being able to grab those clues it makes the movie make sense and makes the ending a bit sad for him as this all could've been prevented if right things were put in place. To continue, for the deaf characters you can feel the emotions of being helpless due to not being able to communicate with non-disabled citizen. With that said, it also shows how people/enforcement can just blow off disabled people off because they can't understand them which can be said in the real world today. All in all, this movie is great with minor flaw and shows a little bit of reality.