Popielski is privately appointed by Luba's son to find his mother's murderer. Meanwhile Popielski falls in love with Renata and entangles himself into a stormy erotic relationship with her. Popielski, with the help of a young Jew and Leokadia, discovers that the Hebrew code is a mathematical sequence in which each letter is assigned to a number. In the Lviv archives Popielski finds that the names of both victims and the countess add up to the same number - 68.