000-0000

A new girl has just transferred to a school after the death of a girl at her last school. When a couple of friends start investigating the case, they find out about the number 999-9999. If you call this number after midnight, you will get anything you ask for... in exchange for something. But as the friends start making their wishes, they start dropping dead after every wish have been granted. How can the evil phone number be stopped, and who or what is it really that's granting their wishes?