On the day of a brilliant dissertation defense, a young scientist unexpectedly dies. Investigation of the facts indicates an accident. However, the discrepancy in the testimonies of colleagues leads the investigator to think about the uncleanness of the hero, who simply used the unpublished results of other people's work.

• DirectorAleksandr Surin
• Release19 March 1976
• GenreMystery
• Duration1h 32m
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  Mosfilm