The plot follows Morris (Curran), a recluse with psychotic tendencies, whose life changes when his innocent daughter (Vickers) rescues one of his victims and befriends him. Jake (Hill), an ordinary businessman, soon realizes that he is stranded, and his presence in the house gradually reveals unexpected and dark mysteries from the past.

The story of ‘CHRISTMAS SLAY’ begins on a wintry Christmas Eve in the picturesque Kentish countryside, the horrific murder of a loving family, and the capture of a Santa Claus obsessed blood thirsty killer. A Christmas approaches the following year, a group of college girlfriends decide to get away from it all and relax and party over the Christmas holiday, they decide to escape to the idyllic Mistletoe Lodge nestled within the beautiful snowy mountains of the Scottish Highlands, what starts off as the perfect festive getaway of fun in the snow and a glass of eggnog or two, suddenly descends into a gruesome bloodbath of terror and a fight for survival.

The Church sends in a team to investigate the tragic deaths of a young group found in the crypt of a Convent.