A life of a driver Stephan Chekmenev turns out to be very lucky: healthy children, loving wife, solid loghouse. But once his fellow-villager perishes in a forest. And Chekmenev, considering himself to be the one to blame, in expectation of an imminent retribution, tries to understand: why and when did he, once having so many friends, become so indifferent towards other peoples lives.

The Earth is facing great problems in the nearest future it is in the lack of sun light. Physicist Olmin is leading the project to build a special tunnel - made of elementary fractions - from the sun to the earth, in order to the earth could get much more sun energy and light. At the same time a strange flower is brought to the Earth from a dead planet.