A bird cherry blossom was in bloom in the garden of private investigator Lydia Rosova. Its aroma permeated everything around. Two bird cherry trees, one with red berries and the other with black berries, grew, as Lidia's childhood friend Tarasik, now investigator Taras Drozd, used to say, right under the windows of the "lord's" house. And for this, he received a rather tangible slap from the owner of the house. Taras would scratch the bruised spot offended, but soon forgetting about the slap, he would start scratching again. Through her dream, Lidia heard a quiet, absolutely safe sound. After it was repeated, before she woke up, she realized that someone was throwing pebbles at her window. As she opened her eyes, she heard the same sound for the third time. Going to the window, Lydia opened it and looked out. Downstairs, illuminated by the moon, Jan Rudauskas stood all in white...