It takes a lot for a person to lose interest in life and decide to leave it, but sometimes little things are enough to regain this interest. Anton took a long time to decide to step outside from the twenty-fifth floor, but one sudden meeting first makes him change his mind, and then drags him into a mysterious crime story that is gradually becoming more and more dangerous. He should run away without looking back, not get involved, but whatever - interest has already awakened, and now Anton will have to unravel the cunning verbal code in order to unravel the case and avoid death, which no longer seems so attractive to him.