The successful judge Alicja Mazur, who is known for her strictness towards criminals. The woman is unexpectedly accused of a murder she did not commit.

A young man crashes a school play rehearsal to prevent a group of teachers and eccentric parents from expelling his girlfriend's son.

Oskar and Detective Bruno are about to embark on another fascinating journey full of puzzles and surprising twists. This time the adventure of our detective team will be even more captivating, as they will be on the trail of the real treasure of the Baltic Sea!