The Andalucian Friend by Hjalmar Soderberg

In a gripping tale of intrigue and suspense, a seemingly ordinary nurse finds her life turned upside down when she becomes entangled in a dangerous web of crime and deception. Her chance encounter with a charming patient draws her into the shadowy underworld of international drug trafficking, where alliances are fragile and trust is a rare commodity. As she navigates a perilous path filled with unexpected twists and betrayals, she must rely on her wits and resilience to survive the escalating threats that challenge her morality and test her courage.