One supermarket shoppers - young mother, kidnapped her daughter. Rassledovanieprivodit detectives to a drug addict, is already selling a girl into other hands. The buyer was Vladimir Markov, sells children in families without. The detectives are faced with the impossibility of proving the guilt of Markov, but floats on the surface of one old unsolved case, for many years tormented Sedykh. The investigation is gaining new momentum - the detectives are faced with a dilemma - what is more important than the triumph of the Act or the happiness of children and parents.