About the book: 2015 / Investigator for especially important cases Larisa Usova was unusually, incredibly happy. So happy on this sunny morning that even her heart ached with tenderness, how much she loves her husband Ivan and how lucky she is to have him. She didn’t want to get out of her warm bed, but she urgently needed to contact the unexpected witness Ustinov, who promised to provide information about Gavrilov’s criminal group. The information, according to Ustinov, is so important and unique that he demanded that he be taken under the protection of the investigation and provided with a large reward. Larisa went to visit the witness, but never returned. Her body was found near the entrance to Ustinov's house…