Black Wings

On his birthday, his wife gifted Lev Guriev a certificate for a flight on a commercial airplane. However, right after landing, the exciting trip was overshadowed by the pilot's murder. Guriev, the first to reach the dying man, could only make out one word: «Isaev». The next day, a fire occurs at the same airbase, in which the co-pilot dies, and in one of the planes, the operatives find a large batch of counterfeit dollars. Guriev and Kryachko realize that the series of tragedies is not accidental; something must connect these incidents. And who is Isaev? The detectives do not yet know that the search for answers to these questions will force them to go back many years to identify several strange victims…