"El Rata" is released from prison after having served a sentence for "political" crimes during Franco's dictatorship. Now, on the street and with very few opportunities to work, he decides to commit a crime again.
皮拉尔和胡安是一对幸福的夫妻,资源很少。有一天,他们决定玩圣诞彩票。但皮拉尔在她丈夫背后买了一张羊肉抽奖券,最终她赢了。他们的孩子对这种新动物很高兴,尽管胡安很失望,抱怨钱。然后,他们决定在圣诞晚餐上供应羔羊,这似乎是不可能的,因为孩子们喜欢这种动物,没有人能够杀死它。就在同一个圣诞前夜,有人偷走了羔羊,并为失去了这只他们作为家庭成员已经深爱的动物而悲伤,开始绝望地寻找他们的新宠物,在此期间,他们经历了一段令人难以置信的旅程。