A couple hires a professional digger (underground structure explorer) to help them find their friends, who mysteriously disappeared in the subway.
The main participant in the secret police experiment "Undercover Taxi" Alexei Turbin enters into a deadly battle with a gang terrorizing the city. Every day he patrols the streets in a specially equipped taxi and simultaneously conducts a personal investigation. Colleagues consider the Turbine to be a magnet for trouble — because it constantly finds itself in the epicenter of events. But it is this quality that helps him solve the most complicated crimes.
A talented doctor, a rich slacker, a good mother and other people whose life looks perfect only from the outside are in an eternal search for an answer to the question of what happiness is.
