In the peasant estate of the widow Agna Veter there is a holiday: the evening before the wedding of her son Vasil. In the bustle of preparations, a certain Voschila appears - one of the organizers of the upcoming peasant uprising against the atrocities of the magnate Radziwill. Vasil Veter initially takes a peaceful position, calling for worldly joys and an end to all bloodshed...