A lifeboat floats ashore at the coast of Skåne. Inside are two dead men who who've been murdered. Policeman Kurt Wallander is assigned to the case. The men are identified with the help of the police in Latvia. One of their officers travel to Sweden to to help but when he returns to his home country he is mysteriously murdered. Kurt flies to Riga to find out why and is drawn into complex conspiracy.

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.

During an international rally two contestants find a hidden painting in the door of their car. In order to not get removed from the track riders do not report to their team management.

The son of Martins Viksna, the collective farm chairman, Klavs comes home from the military service and starts working in his native kolkhoz but does not understand his colleagues, so he goes to town.

Human relationships are like fishing nets, they can be either filled or nodular.

The police leadership is concerned about the increase in car thefts. The investigation of the thefts is entrusted to police captain Siliņš. Once, his fiancée and colleague Aija Kalniņa almost catches up with the criminals in her service car after a chase, but at the last moment they manage to escape. However, Aija manages to spot her eighteen-year-old brother Juris among the thieves. Hiding in the forest, the car thieves accidentally witness another crime—an attack on a woman. To justify himself in his sister's eyes, Juris sets out to find the criminal and is killed.

A businessman and a footballer are murdered before an important football match in Prague. Investigation has to be started.

Head of the CID and his colleagues are investigating a serious crime but the main witnesses are of no help.