Firewall

Stopping to get money from a cash machine one evening, a man inexplicably falls to the ground: dead. A girl held in police custody escapes and disappears without a trace. An unexpected blackout leaves half the country in darkness and when an engineer arrives at the malfunctioning power station, he makes a grisly discovery.

Inspector Kurt Wallander is sure that these events must be linked - somehow. As he searches for answers he gets dangerously involved with a shadowy group of anarchic terrorists, hidden within the anonymity of cyberspace. The terrorists, always seem to be one step ahead of the police's next move and only Wallander can be counted on to outsmart them.

Seventh in the Kurt Wallander series.
A body is found at an ATM the apparent victim of heart attack. Then two teenage girls are arrested for the brutal murder of a cab driver. The girls confess to the crime showing no remorse whatsoever. Two open and shut cases. At first these two incidents seem to have nothing in common, but as Wallander delves deeper into the mystery of why the girls murdered the cab driver he begins to unravel a plot much more involved complicated than he initially suspected. The two cases become one and lead to conspiracy that stretches to encompass a world larger than the borders of Sweden.