Asteroid City is a mining city under a dome, a city with an artificial atmosphere, a closed world on the very outskirts of inhabited space. Widespread corruption. Mafia and street gangs operate almost openly. Everyone is accustomed to permissiveness and disregard for laws with the complete connivance of the governor and the police. But no one yet suspects what horror will fall on the city with the appearance of a man (and a man?) Nicknamed Hyena. A seventeen-year-old cripple is deprived of everything - family, future and most of his body. Only one thing keeps him from immediate suicide - an incinerating feeling of revenge...