A sadistic count tortures and murders his unfaithful wife and her lover, then removes their hearts from their bodies. Years later, the count remarries and the new wife experiences nightmares and hauntings. The ghosts of the slain return to exact their bloody revenge, until their hearts are destroyed.

A Chinese immigrant, recently arrived in America, fights to free Mexican slaves from their cruel master.

Professor Paris Catalano visits Venice, to investigate the last known appearance of the famous vampire Nosferatu during the carnival of 1786.

Julie (Rosemary Dexter) is disturbed by the disappearance of her psychiatrist boyfriend Luca (Horst Frank) following a bizarre dream where she witnessed him murdered. She travels to a seaside village where he might be and encounters Frank (Adolfo Celi), who tells her Luca has indeed been there. Julie's investigation leads her the house...

Napoli spara! (internationally released as Weapons of Death and Naples shoots) is a "poliziottesco" film directed by Mario Caiano in 1977. It is an unofficial sequel of Napoli violenta, of which reprises the character of Gennarino (still played by Massimo Deda).