When Domenic travels to Pacentro, Italy to connect with his family's past, he comes face-to-face with a specter named Gaia, who haunts the ruins of the forgotten Alvaro castle. She harbors a secret that will test Domenic's understanding of life and death, and perhaps most disconcertingly, his love. But when Dom’s sister Lily arrives, he will have to choose between family and love, reconciling his own sense of self with what he has learned deep within the ruins of the castle. Shrouded in the mystery of a knife, Gaia's tragic past will come to light, linking her to the instrument that has kept her prisoner for decades, and will eventually determine the fate of all those involved.