A young lab technician, threatened by a blackmailer, descends into madness.
| Actor | Role |
|---|---|
 Gabriela KownackaNot listed | Not listed |
 Mieczysław VoitNot listed | Not listed |
 Teresa SzmigielównaNot listed | Not listed |
 Henryk BąkNot listed | Not listed |
 Wirgiliusz GryńNot listed | Not listed |
 Marek LewandowskiNot listed | Not listed |
 Barbara WałkównaNot listed | Not listed |
 Agata RzeszewskaNot listed | Not listed |
| JJerzy CnotaNot listed | Not listed |
 Eugeniusz KorczarowskiNot listed | Not listed |
 Zofia Kopacz(uncredited) | (uncredited) |