The detective mini-series "Article 105" tells the story of investigator Ekaterina Pavlenkova. She often deals with the most dangerous representatives of the criminal world. Her latest investigation is no exception. This time, it's about a serial killer who murders his victims in the same way. He stuns them with a stun gun, makes them kneel, and then shoots them. Catching him has proven to be a long and difficult task. Pavlenkova's patience wears thin when her boss's life is in danger.