Perugia. The police are carrying away the body of a young woman when they hear a sigh: Rosa Lazar is still alive. The assistant district attorney Cristina Camponeschi and psychologist Stefano Mangiaboschi investigate, but Rosa seems unaware of the attack she has endured and hides the truth. For Cristina, the girl is the key to an international crime ring; for Stefano, the start of an inner journey that will lead him to reveal the true enigma of Rosa Lazar.