The story of how the unprosecuted villainies of the past germinate in the present. One of the heroes is modern, protest. The other is a cop, drawing up an arrest report for the first one. The second grandfather was sentenced as a result of denunciation, and he knows who is to blame. The first becomes the owner of magic vitamins that allow him to travel through time. The second is developing a plan for revenge for his grandfather and proposes to return those responsible to the times of the tyrant. And in our time they have already reached high positions. And thanks to the first’s girlfriend, this is possible. She becomes the main performer. But the question remains open - how to stop the return of this boomerang from the past. One of the heroes finds this solution for himself.