Suddenly, inexplicable things begin to happen in the life of Pyotr Boluev, not a very successful middle-aged prosecutor. A series of accidents makes the prosecutor think about whether he is being pursued by ill-wishers from the criminal world? When an informant does not come to his meeting and someone gives false information about his wife, Boluev goes for help. Soon, the suspicious prosecutor's case complicates the assassination attempt ...

Fitness center owner Ekaterina Turinina was found dead in her own bathroom. The investigation establishes that before her death, she had a serious quarrel with her daughter Julia, because of her fiancé Konstantin Rakov, who had a connection with a rival firm Turinina, who had long wanted to buy her business. Catherine considered him a swindler and offered him money so that he would leave her daughter alone. But Konstantin did not take the money. A quarrel with her mother served as an excellent motive for murder for Julia, and she is arrested.