Father Luca Moretti receives a strange summons on late night to rush to the bedside of a dying man in order to perform his last confession, but Father Luca Moretti is not expecting a meeting with this man, a mysterious Don Alessandro Moretti, his long-lost father, who is also the most dreaded mafia patriarch in Italy. Except that dying and full of repentance, Alessandro shows long-concealed sins and a deadly secret that can ruin everything Luca knew about the faith, his family, and himself. As Luca struggles with the memory of his father's past, he meets a fierce and beautiful woman, Isabella Romano, who is has a lineage of her own shadows. She is a daughter of Enzo Romano, the one that Alessandro despises most and the same man who had shed blood in both their lives. The chance develops into forbidden affection and envelops Luca more into the life that he swore to deny. Having left his priesthood behind and his enemies closing in, Luca has to choose between justice and revenge, love and loyalty, faith versus fury. However, when Isabella becomes pregnant and war breaks out between the clans of mafia, the price of truth turns out to be higher than both of them can afford. Caught in the opposition between the sin of the father and the future of the child, it is this path that will bring Luca to the shadows of human soul, and which can only show him light of love.