The scenario was based on a true document from the 1950s. The story follows doctor Bogdan Ocokoljić, who is entrusted with a secret task to investigate the appearance of an inexplicable epidemic on Goli Otok.
| Actor | Role |
|---|---|
 Milivoje ObradovićBogdan | Bogdan |
 Svetozar CvetkovićŠef | Šef |
 Gordan KičićVasko | Vasko |
 Anica DobraNot listed | Not listed |
 Tamara DragičevićJelena | Jelena |
 Ana FranićNot listed | Not listed |
 Nikola RistanovskiNot listed | Not listed |
 Miona MarkovićNot listed | Not listed |
 Tihomir StanićNot listed | Not listed |
 Una LučićAgentica | Agentica |
 Bojan DimitrijevićNot listed | Not listed |
 Jovo MaksićNot listed | Not listed |
 Ana MaljevićNot listed | Not listed |
| NNebojša ĆirićNot listed | Not listed |
| JJoakim TasićNot listed | Not listed |
| BBranislav JevtićAgent | Agent |
| ĐĐorđe Živadinović GrgurZatvorenik | Zatvorenik |
 Nikola PavlovićZatvorenik | Zatvorenik |