There's no grasshopper in the grass

Another person’s life is like an iceberg: only a small part is visible to the observer. But what secrets are hidden in its depths? What underwater currents carry it, and what disasters does an encounter threaten? In a seemingly prosperous family, a wife disappears, and her husband becomes the prime suspect in her death. Detectives Makar Ilyushin and Sergey Babkin can untangle the knot. But to do this, they will have to dive into the dark waters of the past and understand what is frozen into the base of the ice floe.