Ivan Sergeevich Kashkin — the bath attendant of the most prestigious metropolitan bath. It’s not easy to get to him: reputable diplomats, well-known footballers, and the heads of the ministry are seeking the honor to steam. But Kashkin himself does not need to achieve anything, everything is at his service — from black caviar to tickets to the conservatory. And the hero’s cloudless life would have flowed, but then his twin brother Sergei fell ill and asked Ivan to replace him in his equally strange work.