In the 1950s, a communist country. The film follows a retired detective who investigates two enigmatic murders. Both murders are connected to a murder exposing an old secret about a corrupt officer that causes controversy throughout the city and alerts the political security. As he uncovers clues, the detective plunges deeper and deeper into a maelstrom of political and personal intrigue that leads him to a final revelation.
Unfortunately the movie Echo Sonata is not yet available on HBO Max.
| Sound | Giacomo Puccini | Music |
| Editing | Rares H. Stoica | Assistant Editor |
| Sound | Dmitri Shostakovich | Music |
| Sound | Franz Schubert | Music |
| Crew | Sandor Vlad | Cinematography |
| Sound | Richard Wagner | Music |
| Sound | Jerbakka Julian | Musician |
| Camera | Moldovan Mihai | Camera Operator |
| Editing | Sandor Vlad | Editor |
| Sound | Erik Satie | Music |
| Directing | Sandor Vlad | Director |
| Writing | Sandor Vlad | Writer |
