One of the officers reacts instantly - this man is a well known criminal, he understands he is recognized.

He has also robbed a military camp ten minutes ago, and the van is loaded with explosives and assault rifles.

Martin Beck is working on the case and gets all the resources he needs to get the unknown murderers.

The hunt gets complicated, because Martin's partner, Gunvald Larsson, was a close friend to one of the killed police officers and he is ready to use literally any method to find the killer.

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