Film reconstruction of the dramatic events which took place on Thursday, Deccember 17, 1970, in Gdynia when a workers' demonstration against the increase in food prices was brutally pacified by the army and the militia (police). As a result, 18 people were killed and few hundred were injured. A factual story of an ordinary family of Brunon Drywa, a shipyard worker, who was shot by policemen on his way to work.