In a small Midwestern town, the holiday season takes a sinister turn when a malevolent figure dressed as Santa Claus begins a reign of terror. Deputy Aubrey Bradimore is called in to investigate a series of brutal murders, all linked by the chilling fact that the perpetrator is disguised in a Santa suit. As the body count rises, she teams up with the no-nonsense Sheriff Cooper to track down the killer. Clues lead them to a traumatically scarred local, but uncovering the true identity of this Christmas slasher proves to be challenging as red herrings and false leads cloud their judgment.

As the investigation deepens, Aubrey not only deals with the pressure of stopping the killer but also grapples with her own personal demons and the haunting memories of her father's untimely death. The sense of dread builds, making everyone in the town a potential suspect or victim. The panic escalates during the town’s annual Christmas parade, where the murderer is likely to strike again. With time running out and the town’s festive spirit being engulfed by fear, Aubrey must piece together the disturbing puzzle to prevent further bloodshed, all while contending with her own crisis of faith in a night cloaked in fear and deception.