Polina came to the seaside for the first time in many years. Her plans did not include holiday romances, but on the very first day it became clear that she would not be left without the attention of two young men at once. Kostya took Polina to local bars, and Nikita went with her on excursions and excitingly told local legends. However, the vacation was soon overshadowed - a stranger died on the beach right in front of the vacationers, and Polina unwittingly became a participant in the investigation. Moreover, Nikita is the author of detective stories, God himself ordered him not to stand aside, and together they will move mountains! Even an attack from an unknown person did not stop Polina’s interest. And soon her sister Olya disappeared! I had to plunge headlong into this matter and make a very unpleasant discovery about one of my new acquaintances...