Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: a completely original suspense masterpiece!

One of the most original films ever made! A man in a wheelchair, with a leg in a cast is trapped in his Greenwich Village one room apartment, watching his neighbours through the window onto a courtyard, during a heat wave in the summer. Sometimes what you see, you don't believe and what you believe you don't see and that can be murder. The set-up and premise of the film is outstanding and completely original. With excellent dialogue and excellently mounted scenes without dialogue, Hitchcock enters the dangerous world of the peeping tom and gives it his masterful twist.