Dasha Sheina failed her dissertation defense and was not accepted into the Institute of History, so she had to get a boring job in a management company. On December thirty-first, director Vladislav Kopatko demanded that an urgent report be prepared and brought to his country cottage. Dasha suspected something was wrong, but she had no choice, and she went to his house. As she expected, the report turned out to be unnecessary; Kopatko began pestering Dasha. He was drunk, but she managed to free herself and escape, hitting the boss with a candlestick. Dasha was not worried about his well-being, because she is a fragile girl and the blow did not cause much harm to the boss. But the next day the police came to Dasha with a shocking message: Kopatko was killed and she was the last one to see him alive...