A man enters the bank with something resembling a bomb around his neck. He demands that money is transferred into an account, or he will blow up the bank. The man is known as the village idiot, and claims that Sitting Bull is his father. No one take the case to seriously until they find that the bomb is real. Is the village idiot acting on his own, or are there more people involved? A long and complicated investigation is started by Kurt Wallander and his colleagues.

The dead couple Olof and Carolina Wachman are found murdered in their magnificent estate. The investigation finds that she has been tortured and raped in front of her husband before they were both killed. A death that must have been a relief after the torture they both went through.

Kurt Wallanders daughter Linda and DI Stefan Lindman now have to show that they are as good a pair of investigators as Kurt Wallander himself.

Slowly but surely we see that the murder is about revenge, a revenge that can be traced back 20 years.

A blue car is parked by a side road in the beautiful landscape of Skåne in southern Sweden. A child sits alone without an adult in sight. The child's father has been reported as missing, while the mother is in a psychiatric institution, unresponsive and apathetic. Kurt Wallander's failing health sees Linda take the lead in the case. It will touch her deeply as she discovers that the child has been unscrupulously tricked, exploited and humiliated.

The national election is approaching, and the Ystad town square is plastered with election posters with local labour party candidate Kenneth Nillson, a politician fighting the fear of immigrants as his electoral focal point. He sees it as his duty to clean Skane's reputation as being racist.

At the same time a train rolls into the train station in Gdansk, Poland. On the train the police find a African male with most of his face shoot away. As the man was murdered in Ystad, the starting point of the train journey this becomes a case for Kurt Wallander and the Ystad police. For Kurt Wallander the case takes an unexpected turn as the murder weapon has ties to a childhood friend.

A old man goes to his bank to cash in 20 million kr, with him is his 3 dogs. The man is found dead a few days later and so is his 3 dogs.

The money is no where to be found and the police suspect his neighbour to be the murderer, but nothing is as its seems to be. A few days later the neighbour and his family are also found dead, and Wallander and his colleges have to be sharp to find out who the murderer is. The small town of Soldala is waiting for Wallander to find out why the old man and his 3 dogs and the old mans neighbor and his family must die. And where is the missing 20 mill. Kr is.

The Ystad Police finds a boat in Ystad harbour resembling a slaughter house. There is blood everywhere, but no bodies.

Soon there after a dead woman’s body floats ashore. One of the clues in the investigation leads to Oskar Ung, an old love of Linda Wallander. Their previous relationship hinders Linda's work with the case, and Kurt demands that she leaves the investigation But that turns out to be easier said than done. Old love never rusts.

Eleven year old Johannes is found dead in a crevice. The postmortem shows that the boy has been sexually abused and beaten to death. Detectiv Stefan Lindman is a member of the same shooting club as the victims father and they are also friends. Therefore he becomes the one that has to tell the father what has happened to his son (Johannes). When the father finally understands what has happened he demands that Stefan personally gets the one responsible. Stefan is since a previous case being accused for abuse, because the internal investigation Stefan has to go on paid vacation, and he is not allowed to continue his investigation. But because of personal issues he continues the investigation anyway. He has a dark secret, a secret that has the answer to why he came to Ysta in the first place.

Kurt returns to work after a temporarly suspention. At the same time a girl disappeares which draws in the entire Ystad police and military looking frantically for her. When Kurt starts to work on the case, he begins to see similarities to a case he worked on ten years earlier, which hit him very personally.

It's almost Christmas and Kurt is troubled by his memory disease. He realizes that it will soon be necessary to tell his colleagues and the rest of the world that he is sick. But he finds it difficult to give up his job, his only identity. In Ystad, there is a brutal kidnapping of a famous restaurateur, Paolo Salino. Kurt takes on the case but is forced to enlist the help of his colleague Jenny from the police in Malmö.