Likeable 6th grader Liam writes to Santa asking him to prove that he’s real. But Liam is dyslexic and accidentally sends his letter to Satan instead, who shows up at Liam’s house, excited to have his first fanboy letter and wanting a little of Liam’s soul.

When young Buddy falls into Santa’s gift sack on Christmas Eve, he’s transported back to the North Pole and raised as a toy-making elf by Santa’s helpers. But as he grows into adulthood, he can’t shake the nagging feeling that he doesn’t belong. Buddy vows to visit Manhattan and find his real dad, a workaholic.