"Divorce Russian Style". Ksenia's school friend, Anna Shubina, is murdered. She had once organized a private museum dedicated to divorces. The scandalous collection of personal belongings of "cheaters" and "fatal women" caused protests, and the museum was repeatedly demanded to be closed. The main enemy of the museum, and possibly Anna herself, was her ex-husband. However, the motive that seems obvious turns out to be false. In order to solve the case, Ksenia and Akimov need to understand which exhibit in the museum holds the key to the solution.
"The Rasemon Effect". Ksenia and Akimov take on the investigation of a businessman's murder. The investigation has three suspects, each of whom claims to have witnessed the crime from different perspectives. However, their versions of what happened contradict each other. Akimov is convinced: this is the Rasemon effect. Witnesses don't always understand what they saw and are not always capable of interpreting it correctly. It becomes even more interesting to uncover the truth.