Vittoria, a stubborn and enterprising teenager, on October 31, 1989 ventures into a cave by the sea in search of the legendary treasure of the Owl King, thanks to whom she dreams of moving with her whole family to America. Instead, lost in the labyrinth of tunnels dug under the city, which will lead her on an adventurous journey between past, present, and future, she will be forced to confront her identity and her roots.