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)

A wave of burglaries sweep through Ystad. A group of neighbours in the affected area decide to take matters into their own hands and start a neighbourhood watch. During one of their night shifts they spot a suspicious man and give him a serious beating.

The next day both the man and his car are missing. The Ystad police get contacted by a desperate Polish woman reporting her husband missing. The case is given low priority, but Wallander decides to take a closer look at the case and soon sees a potential solution as the clues lead him to a tghtly knit group of neighbours. The missing man’s body has still not been found, but Wallander finds a series of pictures of a dead woman on the missing man’s phone .....

A Russian concerto Cello player is the victim of a bomb attack after a performance in Ystad. The woman turns out to be a lead witness in a murder charge against a member of the Russian mafia, the son of one of their leaders, Leb Munchin. Wallander and his colleagues find themselves in the middle of a war against a powerful international opponent with ruthless methods. But Walalnder suspects that Leb Munchin’s motives aren’t about money and a quick profit, rather they relate to something much deeper. Eventually Walander stands eye to eye with an aged criminal who is ready to fight his last fight with all the means at his disposal.

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.