The grandfather of fifth-grader Gleb Borodaev was a famous detective writer, but he died before he could finish his last horror book. A novel based on a real story - the mysterious disappearance of man called Dachnik in Borodaev's country house. Gleb and his five classmates, including amateur detective Alik Detkin, decide to uncover this secret on their own.
| Actor | Role |
|---|---|
 Andrey KozlovAlik Detkin | Alik Detkin |
 Stanislav SadalskiyUncle Grisha | Uncle Grisha |
| AAnatoli YurtayevGleb Borodaev | Gleb Borodaev |
| AAndrei PetrovOld Teacher | Old Teacher |
 Lyudmila ArtemevaYoung Teacher | Young Teacher |
 Vyacheslav Baranov"Prince of Denmark" | "Prince of Denmark" |
| AAleksei Dorofeyev"Dead Man" | "Dead Man" |
 Vera PanasenkovaNatasha Kulagina | Natasha Kulagina |
| YYelizaveta PlaksinaMironova | Mironova |