In Killers Amidst Killers, Jensen takes on the unsolved cases of dead and missing women in Ohio, whom he suspects were victims of serial killers on the loose and operating under cover of the opioid epidemic. The story begins in 2017, when two young women go missing within weeks of each other, and their bodies are found soon thereafter. As Jensen investigates these cases - the facts not found in old police reports and faded photos but unfolding before readers' eyes - he comes across other missing and murdered women, and before long, he uncovers eighteen of them. All unsolved. And no one is talking about it.