Captured by a ruthless criminal gang, Diabolik and Ginko find themselves face to face. Locked in a cell that has no way out, and convinced they are going to die, Diabolik reveals his mysterious past to the inspector. Meanwhile, Eva Kant and Altea are each desperately searching for their two loves. Will the paths of the two rivals cross at last?
Vigàta, Sicilia, Italia, 1880. Poco después del regreso al pueblo de Fofò La Matina, farmacéutico e hijo del difunto Santo La Matina, celoso guardián de los secretos de ciertas plantas milagrosas, la noble familia Peluso es devastada por una serie de muertes misteriosas ...