...The near - VERY near - future. The Earth's oil reserves have been exhausted, the greatest powers have broken up into dozens of tiny states, and the only source of energy the planet needs is a small orbital station, the inhabitants of which daily supply people with the energy of the Sun. But at the Solar Station they begin strange murders happen - murders, at first glance, crazy and aimless!.. The investigation is entrusted to a modest employee Leonard Carr - the only inhabitant of the station who has REAL COMBAT EXPERIENCE behind him...