The characters of the 15th-century Hussite War – the Hussite mercenary, the imperial soldier, the priest, and the peasant – appear in a writer's home, and engage in a debate. The main question of their conversation: who among them is a traitor, and who has a just cause in the conflict. This movie is a television adaptation of Ferenc Sánta's drama of the same name, based on his novel "Az Áruló".