一个四世同堂的家族在平安夜齐聚祖屋，这可能是他们最后一次在这里过圣诞。随着夜色渐深，几代人的紧张关系愈发剑拔弩张。

Strange cravings and hallucinations befall a young couple after seeking shelter in the home of an aging farmer and her peculiar son.