Pablo’s life is ruled by drugs and by the intense and oppressive relationship he has with his mother, a former cocaine mule who escaped from Colombia and with whom he shares a small house in the outskirts of Rome.　　After her death, following her relapse into drug addiction caused by his emotional involvement with a young Colombian girl mixed up in the smuggling ring, Pablo’s guilt pushes him to try and bring her ashes back to Colombia.　　When the embassy denies his request on the basis of the fake identity and passport of his mother, the protagonist will be forced to tackle the journey by ingesting ovules containing ashes instead of drugs and he will find himself in his home country for the first time, desperately looking for redemption and his mother’s house on the Madgalena river.

1943年圣诞节，两名美国飞行员因为轰炸机被击落，于是来到了一个塞尔维亚村庄。他们受到了当地切特尼克（南斯拉夫祖国军，一个抵抗德军的游击队）的欢迎。一名游击队少校带着德军追捕美国飞行员的消息来到村庄。他提议接走美国飞行员，但游击队拒绝了，因而挑起了血腥冲突，导致少校丧生。游击队害怕德军袭击，于是解除了飞行员的武装并拘捕他们，但飞行员成功逃脱了。惊慌失措的游击队决定杀死少校的两名随从，将他们的尸体伪装成美国飞行员交给德军。然而事情终会败露，而残酷的游击队领导也将无法安抚愤怒的民众。