Captain Nikolay Markin heads to the strict regime colony somewhere in Siberia. But he never gets there, because halfway there, he sees the escaping prisoner Dmitry Voronkov. Without hesitation, the officer rushes in pursuit of the fugitive. Unlike the prisoner who is apparently prepared to escape, Nikolay has no map, food, or weapons. Two friends who destroy each other into bitter enemies because of one woman - A fugitive prisoner and an officer, who protect each other sensitively, "back to back" - A man who killed his brother for profit - Fate will weave the lives of these people in a tight knot of mystery, which will seem not to be the only one. And the person who manages to untangle it will have to gamble it all.