'Lovers of the Monster') is a 1974 gothic horror film directed by Sergio Garrone and starring Klaus Kinski.

[3] Dr. Alex Nijinski (Klaus Kinski) stumbles upon a secret experimental laboratory when he returns to his wife's ancestral homestead.

Work in the lab turns the curious doctor into a Jekyll and Hyde split personality, with the evil alter ago going on a killing rampage in the town which is blamed on a pair of tramps.

[2] Ayhan Işık, Erol Taş and Roberto Messina are not credited in the Italian prints of the film.

[2] After contacting the Italian distributor named Sabatini, he was introduced to the Rome-based Turkish producer Şakir V.