A brilliant scientist, an academician, a tireless ladies' man... Could such a person voluntarily die? Marina Lazareva, who has been tenderly in love with her teacher Vladimir Beketov since her student years, does not believe this. And she asks her friend, investigator Igor Talyzin, to help her find out the circumstances of Beketov’s death. It turns out that for his anniversary, which became the eve of the murder, he gathered a very strange company - students and former lovers. A completely extraordinary personality, Beketov evoked a burning mixture of hatred and admiration from both. So who could benefit from his death - his students, his mistresses? Igor and Marina definitely need to figure this out. Moreover, the killer did not limit himself to one victim...