A heartwarming story of friendship and demonic possession The year is 1988. High school sophomores Abby and Gretchen have been best friends since the fourth grade. But after an evening of skinny dipping goes disastrously wrong, Gretchen begins to act different. Shes moody. Shes irritable. And bizarre incidents keep happening whenever shes nearby. Abbys investigation leads her to some startling discoveriesand by the time their story reaches its terrifying conclusion, the fate of Abby and Gretchen will be determined by a single question: Is their friendship powerful enough to beat the devil? Like an unholy hybrid of Beaches and The Exorcist, My Best Friends Exorcism blends teen angst, adolescent drama, unspeakable horrors, and a mix of 80s pop songs into a pulse-pounding supernatural thriller.