| Title CZ | Žaloba proti neznámému |
| Subtitle CZ | opera o třech dějstvích |
| Title EN | Accusation Against the Unknown |
| Subtitle EN | opera in three acts |
| Title DE | Anklage gegen Unbekannt |
| Subtitle DE | Oper in drei Aufzügen |
| Title FR | Plainte contre inconnu |
| Subtitle FR | opéra en trois actes |
| Category | Stage Works and Film Music |
| Subcategory | Operas |
| Halbreich number | 344 |
| Author of lyrics/libretto |
Martinů, Bohuslav
|
| Author of literary model |
Neveux, Georges
|
| Parts of the composition (movements) | Overture (Andante); 1st scene (Prascovie, procurator); 2nd scene (Prascovie, procurator, Dora Tambov, Michel Tambov, Plouchkin, Kopak); 3rd scene (unfinished; Prascovie, procurator, Dora Tambov, Michel Tambov, Plouchkin, Kopak). |
| Durata | 29' 45'' |
| Instruments | 3232-4231-Timp-Batt-Pf-Archi |
| List of characters | Prascovie (mS), procurator (B, Bar), Dora Tambov (S), Michel Tambov (T), Plouchkin (B), Kopak (T), Pacha (S), woman (A), chorus. |