Young lawyer Agata Rud received her first serious case: she had to defend student Vladimir Myzin, accused of murdering a professor. At first glance, Agatha began to have doubts about the guy’s guilt... On the day of the professor’s death, several people visited his apartment: Volodin’s girlfriend Yulia, whom a friend advised to sleep with the teacher for the sake of a good grade, their classmate Garik, who came to give the professor a bribe, and, finally, himself Myzin, who was desperately jealous of Yulia... Agata carefully studied all the defendants in the case and realized: everyone had both a motive and the opportunity to commit a crime. What should she base her defense on?