At first glance, Tibor Malkav is an ordinary 37-year-old man, but with serious communication problems. He is precise and silent. Though not rich, he can buy whatever he needs. He doesn't depend on his job financially. He loves being a forensic pathologist. A few floors up in the hospital where he works lies his mother with cancer in her spinal cord. No matter how speechless or shallow this relationship is, Malkav has no other relatives. He promises he will not let her die. But the surgery can only be performed in Sweden and the cost is far beyond Malkav's means. One day a one-eyed person introducing himself as the Cyclops sits at his dinner table and makes him an offer: if Malkav kills an unknown person, the Cyclops will provide the money for the Swedish hospital. Malkav takes the job. A few days later he kills the person he had never met before. Soon it turns out to be the greatest mistake of his life. Two days later Malkav receives a letter--from his own victim. Szirmai must have posted it on the day of his death. In the letter he says he wants to meet Malkav, because he found out that they had the same father whom they had never met, so they are brothers. And so the investigation starts, with the murderer trying to find out who his victim really was.