Former Russian journalist German, while in exile in Paris and dragging out a semi-beggarly existence, receives news of the serious illness of his grandfather, a famous physicist. Returning to Russia, German learns from his dying grandfather about the time corridor he created.
The hero decides to use this invention to improve his financial situation. Repeated movements to the 60s and back led to numerous tragicomedy situations. Everything would be fine, but then the authorities suspected something was wrong... The hero, persecuted in the past and present, finds himself in a hopeless situation, but...