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.

Carina Olsson provides the Malmo police information on drug deals comitted at her restaurant. She does this after being promissed anonymity for the Police. 2 days later Carina is found shot. The execution is witnesed by Carina's 7 year old daughter Cleo. Cleo manages to escape and is in hospital in a state off shock.

The murder happens on the ourscirts of Ystad, and is thus asigned to Kurt Walander and his collegaues. With the connections to Malmo the Ystad polie recieves help from Frank Bork (Malmo Police). For PSI Stefan Lindman, who allready displayed signs of mental instability, working with Frank Borkg leads to a round trip to hell. Frank teaches Stefan what it means to stand up for your collegueas, no matter what.

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.

An explosion in one of Ystad's power grids shuts down the electricity in the whole city. Wallander (Krister Henriksson), who is in the middle of a crayfish party at his newly bought house with his colleagues, are called in in the middle of the night. At the same time, the municipal commissioner of Ystad, who has just approved and inaugurated an exhibition showing pictures of Muhammed, the muslim prophet, at the city hall, is being murdered in his house. With less policemen than usual due to various reasons, Wallander and his men are having a hard time taking care of both cases. It gets even worse when several cars placed on various roads outside Ystad explodes, the security service (SäPo) are asking questions, and the police commisioner calles in the army to keep Ystad safe. As to make things even more complicated for Wallander's (From IMDB)

Corrupt businessman Filip Pasolic stands trial for bringing illegal workers into Sweden and using them as slave labour. Wallander is injured by a car bomb intended for Kristina,who is prosecuting Pasolic and she is given police protection. At the same time pressure on the illegal Lithuanian work force to re-build Ystad's recycling centre in time for it to get an E.U. grant results in two men being killed,one of whose little sister,Natalia,sees construction manager Zoran bury the corpses. She goes to the police and implicates Zoran but takes off again with Zoran in pursuit. Wallander can link Zoran to Pasilic and needs to find him before he gets to Natalia in order to strong-arm him into testifying against Passilic. He also has to dissuade Katarina from resigning as,due to witness intimidation,the case is going against her.