A young South African metallurgist, Paul Parker, is studying in Turkey. He meets a Turkish girl, Irene Yilmaz, they become lovers and Irene falls pregnant. An abortionist's assistant, Maria Ayaz, arranges an illegal abortion.

Doctor Ahmet Atilla, the abortionist, rapes the pregnant girls while they are under general anesthetic. Paul accompanies Irene to the building where the abortion is take place. He hides nearby and sees Doctor Ahmet Atilla arrive.

Doctor Atilla anesthetizes Irene but she regains consciousness while he is raping her. The doctor strangles her. Outside, Paul falls asleep. Doctor Atilla erases all evidence of his presence in the apartment and dumps Irene's body in the sea. He then murders Maria Ayaz.

Paul wakes up and can't find Irene. He returns to his apartment. The police discover Irene's and Maria's bodies and Inspector Ali Karacan of the Istanbul Metropolitan Police suspects that Paul is the killer. Paul accuses Atilla of being the abortionist and Atilla flees the country. The police find Atilla's fingerprints in the abortion apartment. Karacan gives Paul his card and Paul returns to South Africa.

Seven years later, Doctor Atilla, practicing neurosurgery in South Africa as Doctor Ismet Allita, hears of a psychological researcher, Selwyn Brink, who has invented a microchip that blocks individual distant memories.

When Paul Parker sustains serious head injuries in a car accident Allita is assigned to operate on him. Allita recognizes Paul and blackmails Selwyn Brink into providing him with a memory-blocking microchip. He implants the processed chip in Paul's brain, blocking Paul's memory of him.

And then the chip begins to malfunction.