Behind the pharmacy counter, Douglas keeps order-one measured dose at a time. His dispensary hums with the quiet rhythm of dependency: the addicts who rely on him for methadone, the fragile trust that holds their lives together. But when Lucy, one of his most loyal patients, fails to show, that rhythm fractures.Douglas's discreet questions lead him into the underbelly of the estate-where rival cartels vie for control, and where trust can be the most dangerous currency. As he follows Lucy's trail through a maze of dealers, enforcers, and desperate confessions, Douglas discovers that his patients' stories connect like veins in a poisoned body. With each dose dispensed, each secret traded, he learns how power flows-and how it can be redirected.Soon, the cartels want Douglas for themselves. Forced to choose between complicity and survival, he turns his pharmacist's precision to manipulation, feeding false intelligence that ignites a brutal war. Amid the chaos, Douglas seizes one chance to save Lucy and destroy the empire that consumed her.From the bleak streets of London, England to the humid coasts of Ecuador, The Measure of Trust is a taut, morally charged thriller about addiction, loyalty, and the cost of redemption. In a world built on dependency, how much trust can one man afford to measure out-and how much will it cost to keep?