Five years after surviving Art the Clown's Halloween massacre, Sienna and her brother are still struggling to rebuild their shattered lives. As the holiday season approaches, they try to embrace the Christmas spirit and leave the horrors of the past behind. But just when they think they're safe, Art returns, determined to turn their holiday cheer into a new nightmare. The festive season quickly unravels as Art unleashes his twisted brand of terror, proving that no holiday is safe.
When a vintage Jack-in-the-box is opened by a dying woman, she enters into a deal with the demon within that would see her illness cured in return for helping it claim six innocent victims.
After being resurrected by a sinister entity, Art the Clown returns to Miles County where he must hunt down and destroy a teenage girl and her younger brother on Halloween night. As the body count rises, the siblings fight to stay alive while uncovering the true nature of Art's evil intent.