For me this movie is one of the best movies released in year 1987. I don't watch too many Horror movies, but this one was amazing. Before you read this review and before I spoil you the story, watch the movie, I highly recommend it. It wasn't easy to leave the cinema, when I saw it first time. What determines the phenomenon of this movie? It's realism, taking care of psychological probability?. Feel free to play the movie online or download it to your computer.