88 minutos
A geologist engineer Yuliya disappears. Ablamov, an elderly engineer, organizes a rescue party to look after her in the mine galleries but they find nothing. Yuliya was last seen at a ceremony for award-wining miners. The newsreel crew was filming the event. Yuliya left in the middle of ceremony. Prodanov, a headstrong and quarrelsome engineer, had followed her. Suspicion falls on him. However, the film sequences shot at the ceremony reveal that Ablamov reacted suspiciously to Yuliya's exit. Detected as the murderer, Ablamov attempts to cross the border but is caught. Yuliya had discovered that the ore contained uranium. Ablamov had replaced the samples in order to prevent the development of the uranium ore deposit.
Assen Milanov
Major Terziev
Nikola Galabov
Leytenant Kirov
Andrey Chaprazov
Engineer Ablamov
Valentina Borisova
Yuliya Beleva
Lyubomir Dimitrov
Lechev
Yordan Matev
Prodanov
Ivan Hadzhirachev
Direktor
Sonya Vasileva
The laboratory assistant
Georgi Popov
Operator
Leo Conforti
Bay Stoyan
Mariya Stefanova
Lyubka
Nadezhda Vakavchieva
Dimitar Panov
Tzenko Boyadzhiev
