Cavall Blanc, a start-up pharmaceutical company, is the new darling of Wall Street. With manufacturing and sales rights to several lucrative generic drugs, they achieved profitability in record time. They followed their initial success by securing contracts to manufacture and distribute generic opiates to several major medical clients, including the U.S. government. Their proprietary production processes allows them to make and sell high quality codeine and morphine by a method no more difficult than home-brewing beer at a fraction of the cost of others in the industry. But when heroin of unheard of purity begins to appear on the Chicago streets and a bomb kills the head of the Turkish mafia as well as thirteen bystanders in a mall coffee shop, Manny Alito, the Special Agent in Charge of Chicago's FBI office, suspects a new player is moving to corner the heroin market. His fears are confirmed when a ruthless assassin kills leaders of the Sinaloa cartel and the Russian and Albanian mafias. Identifying the new heroin player and their assassin calls for the skills of Cailan Bane, a former Force Recon Marine sniper known as the Death Whisperer and his partner Dan Gabriel as well as those of hacker extraordinaire, Osias Lander. The results of their investigation point them to Cavall Blanc. But their inquiries set warning lights flashing among the company's leaders, triggering a corporate house cleaning operation to eliminate any outside threats. But Cavall Blanc's executives make a fatal mistake when their paranoia leaves someone close to Cailan critically injured. Cailan embarks on a solo mission to destroy the company and its staff, and when he's done, they will know what happens when you venture into the lunatic fringe.