Killing in Istanbul(1967)

Killing in Istanbul is a 1960s action film featuring the notorious criminal Kilink, who arrives in the city to steal a devastating formula held by Professor Houloussi. After murdering the scientist, Kilink kidnaps his daughter and subjects her to torture in a hidden dungeon, expanding his captive pool in a desperate hunt for the formula's location. Unknown to the villain, the professor's son has been blessed with supernatural powers and transforms into Superman. As Kilink's reign of terror escalates, the newly empowered hero must confront the criminal mastermind in a battle between good and evil. The film blends pulp adventure with superhero elements, pitting an unstoppable force of villainy against an unlikely savior.