Evgeny Okhotnikov’s bodyguard takes on an honorable assignment—protecting the well-known developer of atomic weapons, Anatoly Stepanovich Zubchenko, whose life has been targeted more than once. Well, the work is familiar, and for someone as smart as Zhenya it can be a bit boring at times. However, everything changes when unknown attackers kidnap the client’s only son, Egor, demanding an astronomical sum for him. The wife of the target also suffers: the villains splash her face with sulfuric acid.
Zhenya has no choice but to take over the role of a private detective. Investigating the disappearance forces her to dig into matters from the distant past—matters that cast a shadow not only on his father, the scientist, but on the entire illustrious Zubchenko family. It turns out there are many people who want revenge on the respected academic and his family...