When multi-millionaire Simeon Lee unexpectedly invites his family to gather at his home for Christmas, the gesture is met with suspicion by many of the guests. Simeon is not given to family sentiment, and not all of the family are on good terms with one another. To make things worse, he has invited the black sheep of the family, Harry, and Simeon’s granddaughter, Pilar, whom none of them has ever met before. Simeon is intent on playing a deadly and sadistic game with his family. An unexpected guest – Stephen Farr, son of Simeon Lee's former partner in the diamond mines – means that the house is full of potential suspects when the game turns deadly.