In the furnished rooms Zhenya is slaughtered - a young prostitute from a brothel. One of the richest merchants of Zatonsk met secretly with her; A poor student, in love with her, could kill her out of jealousy. The tragedy of the girl makes a deep impression on Anna and leads to a conflict with Shtolman.

In Zatonsk with a secret mission comes a young engineer. He gets acquainted with Anna, who helps him with translations, not realizing the true purpose of the engineer's visit to her city. Shtolman understands that foreign spies appeared in Zatonsk, and Anna was involved in a very dangerous game .

A series of brutal murders is attributed to a werewolf, who, according to legend, dwells in the Zatonsky forests and revenge for his dead bride. Shtolman is sure that the killer is not a werewolf, but just a man. Anna, in turn, understands that the clue lies once again between the world of the living and the dead .

The young playwright is murdered in his own estate after the presentation of his play. Anna and Shtolman must disclose this crime within 24 hours. Among the witnesses of the incident - writer Anton Chekhov. Probably, it is this case that will inspire Anton Pavlovich subsequently to write the play of Seagull .

In Zatonsk someone kills beggars, at first sight - aimlessly, just for fun. Trying to find out who is behind these crimes, Anna disguises herself as a beggar. In her footsteps, Shtolman starts. Together they go out on the killers, and also on the trail of the missing Alice Lawrence .

The murder of the prince entailed a series of dramatic events. In Zatonsk, there is no one else to rely on - habitual life is turned upside down and under suspicion are the noblest of people. Will Stollman and Anna survive against the biggest test in their lives?