Pavel Tarlov acts as a reviewer for his friend, who is going to defend his dissertation. Having delved into the work, he discovers in it a number of beautiful assumptions that are not confirmed by practice, and refuses to evaluate. Vadim reproaches Pavel for cruelty and refuses to work with him on the same expedition...
| Actor | Role |
|---|---|
 Roman KhomyatovPavel Sergeyevich Tarlov | Pavel Sergeyevich Tarlov |
 Vladimir ZamanskiySergey | Sergey |
 Valeri MalyshevVadim Nikolayevich Kozlov | Vadim Nikolayevich Kozlov |
 Nina VeselovskayaOlga Mikhaylovna Tarlova | Olga Mikhaylovna Tarlova |
 Nina PopovaTatyana | Tatyana |
| NNataliya DuginaMayka | Mayka |
 Yevgeni Teterin«Slon» | «Slon» |
 Nikolai SmirnovMikhalych | Mikhalych |
 Ivan NasonovVitalka | Vitalka |
| NNatalya KononovaYulya Tarlova | Yulya Tarlova |
 Mariya AndrianovaFlat Owner | Flat Owner |
| VValentina DavtyanNot listed | Not listed |
| AAleksandra MagnitskayaAleksandra Vasilyevna | Aleksandra Vasilyevna |
 Boris VolchekNot listed | Not listed |
| BBoris RomanovNot listed | Not listed |