History teacher Nikolay Echevin on his sixtieth birthday receives an anonymous letter in which he is called the "center of public infection" and threatened with murder.
| Actor | Role |
|---|---|
 Innokentiy SmoktunovskiyNot listed | Not listed |
 Vladimir IlinNot listed | Not listed |
 Ion UngureanuNot listed | Not listed |
 Olga KaboNot listed | Not listed |
 Sergey GarmashNot listed | Not listed |
 Raisa KurkinaNot listed | Not listed |
 Fyodor StukovNot listed | Not listed |
| KKonstantin KaretnikovNot listed | Not listed |
 Aleksey VesyolkinNot listed | Not listed |
 Irina FeofanovaNot listed | Not listed |
 Inna VykhodtsevaNot listed | Not listed |
| MMariya MorevaNot listed | Not listed |
| YYevgeni KhaidukovNot listed | Not listed |
| MMikhail RogovoyNot listed | Not listed |
| ssvetlana smehnovaNot listed | Not listed |
| YYuriy LaktionovNot listed | Not listed |