Klara Walldeen, orphaned as a child and brought up by her grandparents, is now a political aide in Brussels. And she has just seen something she shouldn't. On the other side of the world, an old spy hides. Once, he was a man so dedicated that he abandoned his daughter. Now the only thing he lives for is swimming. Then Klara is thrown into a terrifying chase through Europe. Only the Swimmer can save her. But time is running out...