When a Stranger Calls boasts the scariest opening in film history. Wes Craven completely ripped this intro off in Scream. It's that good. Too bad the rest of the film isn't. It goes completely downhill after the beginning. It's so scary and has such a tense start that you can hardly watch it without holding your breathe. My girlfriend couldn't watch it period. She had to turn her head and keep asking me when it was over. It's very subtle, slow, and deliberate, and very frightening. The rest of the film can't live up to the energy generated by the beginning. But still, I recommend this because the beginning alone is better than most fright flicks in their entirety.