Meet Edinburgh Detective Inspector Liz Kavanaugh, head of the Innovative CrimesInvestigation Unit, otherwise known as the Rule 34 Squad. They monitor theInternet for potential criminal activity, analyzing trends in the extremefringes of explicit content. And occasionally, even more disturbing patternsarise…Three ex-cons have been murdered in Germany, Italy, and Scotland. The onlythings they had in common were arrests for spamming—and a taste for unorthodoxentertainment. As the first officer on the scene of the most recent death, Lizfinds herself sucked into an international investigation that isn’t so muchasking who the killer is, but what—and if she doesn’t find the answer soon, thehomicides could go viral.