The end of civilization has arrived. It is not known what caused this cataclysm, but the apocalypse has wiped out a large part of humanity and the earth has stopped bearing fruit. A Father and his Son are among the few survivors. The Son grows up like a wild beast, as the Father teaches this is the only way to survive. When the Father dies, the Son decides to undertake a journey along a mysterious river in a hostile world, moved by the desire to discover what was forbidden to him, but above all in search of someone who can read to him the words