Arvīds Lasmanis can't hold any job for long because he is not ready to tolerate deceit and slapdash work. He still has to feed his family, by chance he finds a well-paid job as a gravedigger. A friend helps Arvīds to find a place in a construction team, but other workers don't approve of Arvīds' high principles. His wife accuses him of not knowing how to make money, the family lives crammed in one...

After the train conductor Pētersons receives money transfer from an unknown source, he suspects foul play involving the cargo he's transporting. He decides to do his own investigation into the matter, not realizing that he's putting himself and those around him in danger.