Claudia and Anna join Anna's lover, Sandro, on a boat trip to a remote volcanic island. When Anna goes missing, a search is launched. In the meantime, Sandro and Claudia become involved in a romance despite Anna's disappearance, though the relationship suffers from guilt and tension.
Sandro
Claudia
Anna
Giulia
Anna's Father
Corrado
Gloria Perkins
Raimondo
Prince Godfrey
Patrizia
Photographer
Zuria, the Journalist
Princess
Martina
Ettore (uncredited)
Old Man on the Island (uncredited)