A Most Wanted Man by John le Carré

A half-starved young Russian man in a long black overcoat is smuggled into Hamburg at dead of night. He has an improbable amount of cash secreted in a purse around his neck. He is a devout Muslim. Or is he? He says his name is Issa.
Annabel, an idealistic young German civil rights lawyer, determines to save Issa from deportation. Soon her client’s survival becomes more important to her than her own career—or safety. In pursuit of Issa’s mysterious past, she confronts the incongruous Tommy Brue, the sixty-year-old scion of Brue Frères, a failing British bank based in Hamburg.
Annabel, Issa, and Brue form an unlikely alliance—and a triangle of impossible loves is born. Meanwhile, sensing a sure kill in the “War on Terror,” the rival spies of Germany, England, and America converge upon the innocents.
Thrilling, compassionate, with characters you’ll never forget, A Most Wanted Man is a work of deep humanity and uncommon relevance to our times.