Oleg Safonov grew up without ever learning who his father was. The journalist his father was—was killed by a killer in 1986, just a week before Oleg was born. One day, returning from a business trip, Oleg meets an unusual fellow passenger on the train. The man offers the impossible: to go back in time and try to prevent the tragedy. Oleg takes it for a prank, but the very next morning he suddenly wakes up in 1986…