Tooth Fairy follows Carla who has recently taken care of her sister's son Corey after her death. When visiting Nana to collect Corey's birth certificate, Nana starts to tell the legend of the evil tooth fairy who rips out teeth. Carla is sick of her crazy alcoholic stories and tries to leave, however a power outage suggests something is amiss, something much more sinister than Carla could imagine. - A deranged killer stalks a woman and her nephew.