Silent Night Bloody

Silent Night deadly Night, released in 1972, centers around a mansion and a maniac. When Wilfred Butler's mansion is turned into a psych ward for the criminally insane, he is set on fire on Christmas Day and dies. The house is left to his grandson, Jeffrey, who decides to sell the mansion years later. Unbeknownst to him, an escapee from another psych ward has taken refuge in the abandon mansion. When Jeffrey takes potential buyers to the house, he terrorizes them, killing some, until we learn of his commonality with what happened to Wilfred.
This Post Belongs To Best Christmas Horror Movies Ever