Overview:After the death of his father, whose murder case remained unsolved, law student Denis Petrovsky decides to find and punish the perpetrators himself. After graduating from the institute, he voluntarily becomes a secret agent of the special services. At this time, his peer Sergei Kurlov is being forced to cooperate with the KGB. Two young men begin to carry out secret assignments. While one is working in the prosecutor's office, the other is infiltrating a commercial firm that is allegedly engaged in drug smuggling. Professional and personal interests of both are about to collide…