Samuil Petrovitch is an anti-social Russian émigré in the overcrowded, decaying urban jungle of the London Metrozone. Going against his customary principle of "don't get involved," Petrovitch surprises himself one day by performing an uncharacteristically kind act, which results in his being propelled into a world of rival gang lords, exiled yakuza, crooked cops, crazed prophets, and gun-toting warrior nuns.