Krystal Bentley is an outsider at her new high school, having just moved to a small Connecticut town. Lately she's been hearing the voice of a teenage boy in her head, and he has become her friend and confidant. The only problem is, he's dead... Ricky Watson was killed a year ago in the alley behind Krystal's new school. The rumor mill is filled with stories of Ricky and his untimely death. Unfortunately, as a ghost, Ricky is unable to investigate his own murder, so Ricky needs Krystal to find the truth and she needs someone to listen. When Krystal befriends Sasha and Jake, both outcasts at her high school, the threesome soon discover that they have more in common than their outsider status. Each has a unique paranormal ability and an unusual birthmark in the shape of an "M." Jake announces that the M must stand for misfits, and so the three form an unusual clique. They soon realize that solving Ricky's murder can help them understand the mystery behind their powers and may reveal whether there are others like them.