I have to disagree with anyone who has given this film a negative review. The acting perfectly represents how anyone would imagine interacting with a serial killer is like. For a while there I was even afraid it wasn't fiction as the dialogue and overall filming was very realistic. This film is perfect for anyone who loves a good psychological thriller. It definitely has some very graphic and scary scenes, but I wouldn't expect any less based on the subject matter. Long story short, it is worth watching!