ommissioner Martin Beck and his eccentric partner Gunvald Larsson investigate murders in the flawed social structure of Stockholm, Sweden.
A young woman is found strangled in a hotel room. The investigation leads Beck and Gunvald to Stureplan, Stockholm's nightlife and its downsides.
The bodies of two buried men are found and despite persistent attempts, they cannot be identified. When another man is murdered they discover new evidence that soon leads them to an Islamist terrorist cell.