Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Joe Spinell really must be this creepy!

Oh, finally I got my grubby hands on this masterpiece! What a disturbing film! This sort of thing is why I watch horror. Maniac tells the story of a truly sick individual. As other reviewers have said though, what sets this apart is the performance of Spinell and the whole narrative structure. This is not merely another slasher flick - it's a study of an individual whose evil nature takes control of his, seeminly at times against his will.Hearing this maniac breathing and grunting as he's watching his potential victims was probably more disturbing than the violence - and their's plenty of it here for the gorehounds (thank you Mr Savini!) and the shotgun scene is, well, a blast!Reminded me of other classic serial killer films such as "Psycho" and "Henry" and deserves to be in any serious horror film lovers collection.