Eight strangers are trapped in a deserted manor house as the snow falls, the body count rises and the Christmas tree still needs decorating.
England, 1925. When Lord Edgington receives an invitation to spend the Christmas holiday with an old colleague from the police, he expects fine food, good conversation and the warmth of a roaring fire. But on arriving at Mistletoe Hall with his family, they discover the house deserted and no explanation for where their host or his servants could be.
As more guests appear, the master detective begins to question what could connect the disparate group of newcomers. A teacher, a comedian, a thief, a sportsman, a singer, a policeman and a racing driver will all have their roles to play when a killer crashes the party.