In the apartment of Anna, who, judging by her testimony to the investigation, was on a business trip, a fire broke out at night. The son was saved, but as a result of a nervous shock he was speechless. The investigation, the mother and father of the child will find out the true cause of the tragedy.
| Actor | Role |
|---|---|
 Elena SafonovaAnna Smirnova | Anna Smirnova |
 Nikolai KarachentsovPavel Smirnov | Pavel Smirnov |
 Lyudmila PolyakovaMitina | Mitina |
 Elena PopovaOlga | Olga |
 Anatoliy EgorovValentin Sergeyevich | Valentin Sergeyevich |
| BBoris Drapkindoctor | doctor |
| YYaroslav YesinovskiyAlyosha | Alyosha |
 Yuri VeyalisSeryoga | Seryoga |
 Viktor ShulginFomin | Fomin |
 Kira Golovkoneighbor | neighbor |
 Yuri Ilchukneighbor | neighbor |
 Lyubov SokolovaPolina Sergeyevna | Polina Sergeyevna |
 Valentin KulikVasyok | Vasyok |
 Boris TokarevVitalik | Vitalik |
 Vera BurlakovaKatya | Katya |
| GGrigoriy MalikovFedya | Fedya |
| YYelena FetisenkoSeryoga's wife | Seryoga's wife |
 Sergey Grekovsanitary | sanitary |