Based on the work of the same name by V. Korotkevich. 　　Border of the Russian Empire and Prussia. The ensign, Oleg Butkevich, on the orders of his superiors, catches book smugglers carrying books in national languages (Belarusian, Lithuanian) across the cordon. Love for a local girl and familiarization with selected books, executions of smugglers, turn his service mind upside dow...