An African teenager lives illegally without papers with his blind mother in an abandoned barge on the banks of the Tiber, in the heart of Rome. He will put this precarious and fragile life in danger to save a young Italian girl from the waters of the river. Hoping for a miracle for his mother's health, he tries to contact the Pope, but the result will only be deep disillusionment, the loss of his innocence, but perhaps also a new life...