Silent Night, Deadly Night

On Christmas Eve, eight-year-old Billy Chapman is traveling by car with his parents when the vehicle stops on a remote road. A man dressed as Santa Claus approaches and murders Billy's parents in front of him, leaving Billy alive. The killer, who is fatally stabbed by Billy's mother, is later revealed to be Charlie, a janitor working at Billy's grandfather's care home. In the aftermath, Billy comes into physical contact with Charlie, and an electrical surge appears to pass between them. Billy, who now knows that his parents murdered his grandfather for his money, is taken into care following the murders.