The tight-knit neighbors on Arthur Avenue have proudly lit Christmas luminaries for 40 years, but that long-standing tradition is cancelled this year when Matt Norman, a teenage boy in the neighborhood, is hospitalized in desperate need of a heart transplant. As his parents Ann and Mike anxiously pray by his bedside, a donor is found, while in Detroit, a mother is in anguish at her own son’s bedside. When Matt's neighbors decide to honor him in the best way they know how, they just might help save his life.

As their small Midwestern town prepares for its annual Christmas Eve parade, a sheriff and his deputy discover that a maniac in a Santa suit is murdering those he judges as naughty.