Marta Hornová, a blind soloist of the radio orchestra, becomes acquainted with the actor of the state drama Robert Holan. He also meets her sister Helena, a talented sculptor, whom he mistakes for Marta. However, when he returns her blue veil, which she supposedly lost during their meeting in the radio building, Helena realizes that Holan actually loves her sister...
| Actor | Role |
|---|---|
 Vlasta MatulováMarta / Helena | Marta / Helena |
 Karel HögerRobert Holan | Robert Holan |
 Václav Vydraprofesor Gallas | profesor Gallas |
 Marie BurešováMarie Divecká | Marie Divecká |
 Saša RašilovKrálíček | Králíček |
 Ludvík Veverkarežisér | režisér |
 Jarmila ŠvabíkováJulie Modranová | Julie Modranová |
 Marie Vášováošetřovatelka | ošetřovatelka |
 František Filipovskýrozhlasový pracovník | rozhlasový pracovník |
 Ota Motyčkarekvizitář Petr | rekvizitář Petr |
 Vladimír LerausPavel Průša | Pavel Průša |
| JJosef Cincibushlasatel | hlasatel |
 Dagmar FrýbortováNot listed | Not listed |
| VVěra SkálováNot listed | Not listed |
| FFrantišek PočtaNot listed | Not listed |
| JJosef WaltnerNot listed | Not listed |
 Josef VošalíkNot listed | Not listed |
 Marta MájováNot listed | Not listed |
| LLibuše BokrováNot listed | Not listed |
 František RolandNot listed | Not listed |
 Emil BolekNot listed | Not listed |
| JJaroslav HladíkNot listed | Not listed |
 Karel DostalNot listed | Not listed |
| VVladimír SmíchovskýNot listed | Not listed |
| MMarie ŠvimberskáNot listed | Not listed |
| OOtakar PaříkNot listed | Not listed |