The strange title is explained by the fact that there are two films in the film: one is about a real day in the life of the real Moscow architect Alexander Petrovich Chernov, his mental crisis; and the other is Chernov’s fiction. There is a different fate, a different country, a different life. It is into this very life that Chernov strives to get into - and for the sake of a trip to Spain he will have to commit betrayal. There, for a moment, the doubles will be nearby and both will be on the verge of death. Who will die in the spring of 1978?
| Actor | Role |
|---|---|
 Andrey SmirnovChernov | Chernov |
 Elena YakovlevaIrina / Irene | Irina / Irene |
 Oleg BasilashviliSeva Yarmak | Seva Yarmak |
 Mikhail DanilovLev Deyan | Lev Deyan |
 Yelena KorenevaYelena Trukhanovich | Yelena Trukhanovich |
 Sergei YurskyArnold | Arnold |
 Dmitry BulbaPyotr, Chernov's son | Pyotr, Chernov's son |
 Shirvani ChalaevKhalaf | Khalaf |
 Andrei TolubeyevGleb Gusev | Gleb Gusev |
 Sergey MakovetskiyKostya Shlyapin | Kostya Shlyapin |
 Natalya TenyakovaTanya, Chernov's wife | Tanya, Chernov's wife |
 Lyubov StrizhenovaSeva Yarmak's wife | Seva Yarmak's wife |
 Darya YurskayaChernov's neighbor | Chernov's neighbor |
 Pavel LyubimtsevSwift | Swift |
 Igor UgolnikovTrain Conductor | Train Conductor |
 Aleksandr RezalinTrain Conductor | Train Conductor |
 Vladimir SulimovOVIR employee | OVIR employee |
 Andrey SorokinKGB agent | KGB agent |
| GGrigori GurvichChernov's colleague | Chernov's colleague |
 Oleg IzmaylovNot listed | Not listed |