"Happy Birthday to Me" is a fairly entertaining slasher from the early 1980s, in which the main target is composed by a bunch of hateful know-it-all teenagers who basically deserve the worst possible deaths. There's nothing really spectacular about that, but "Happy Birthday to Me", delivers a well developed combination of butchery for the gore-lovers, but also offers a pretty intriguing and disturbing mystery surrendering the main character. As a matter of fact, the main premise in this film is the main character's deeply troubled mind and her desperate efforts to try to rebuild a part of her l... les resten.