The colonization of the Moon did not occur as smoothly as expected. A deadly disease, thunderstorm and horror of the 21st century were released from the lunar soil. Officially it is called Lunare syndrome. Unofficially - Rotten. Unlike ordinary diseases, the Rot does not immediately kill its host. She strives to change him, both externally and internally. Turn it into a disgusting parody of a person, an insane and monstrous creature. Sanitation Inspector Maan has dedicated his entire life to the fight against the Rot and its carriers. He has a high social class, a loving family, and devoted colleagues. He benefits society and society values him. Life turned out quite well for him. He still has no idea which way this life can turn towards him at one moment. And what price will society make him pay?