Jack Sadelstein, a successful advertising executive in Los Angeles with a beautiful wife and kids, dreads one event each year: the Thanksgiving visit of his twin sister Jill. Jill's neediness and passive-aggressiveness is maddening to Jack, turning his normally tranquil life upside down.

While at a slumber party, twelve-year-old Olivia is blamed for the horrific and mysterious death of her friend after singing a song, created by a reclusive mastermind, Milo, which summons a demonic figure known as “The Crooked Man.” Returning to her hometown six years later, a string of unusual deaths lead Olivia to believe that she’s still being haunted by whatever she saw that fateful night. Once you sing the rhyme, everyone in the house is cursed to die by his hands.

A young teacher with a storied past must win over an impossible collection of kids and become a balm in a troubled town in need of healing.