Alyonka is fourteen years old, she spends her holidays in a forest lodge. But this summer she has no time for swimming in the lake or picking mushrooms... Three years ago, in a deep forest, the girl’s grandparents died from the bullets of unknown criminals. The investigation is suspiciously silent and marking time. How many long years and new victims will it take for the secret to become apparent? Tired of waiting, Alyonka decides to start her own investigation and immediately finds herself between the hammer of potential killers and the anvil of law enforcement agencies. And her own mother does not really support her daughter’s aspirations... and suspiciously hides family secrets from her, including the main one: who is Alyonka’s father?