When Rebecca Miller (Keshia Knight Pulliam) returns home to Tennessee two weeks before Christmas to take care of her niece and nephew while their parents are away, the last thing she expected is to reconnect with her childhood best friend, Drew (Jarod Joseph). As she attempts to revive the kids’ Christmas spirit and redeem their faith in Santa, she rediscovers her favorite childhood activity: 12 Days of Christmas-something she always did with Drew. As the kids’ faith in the holiday grows, Rebecca and Drew’s friendship returns, and she starts looking at Drew in a whole new light.
As the 12 tasks start to become more and more violent, Drew starts to have doubts that this piece of ass is even worth it anymore. When Rebecca admits she isn’t really an Aunt and she had murdered the kids parents, Drew is forced to hunt Rebecca down to rescue the children from a hellish death.