"Man worried" is both a police investigation but also and above all, the story of a man who faces old age with his doubts and anxieties. Kurt Wallander approach sixties and suffers from symptoms related to age (memory and cardiac disorders). The author takes us on its latest survey here. And she particularly affected since it concerns the disappearance of the in-laws of his daughter. The context is exciting and it shows us the political history of Sweden, the Cold War and military espionage. I enjoyed the course of the investigation that reveals not step over the reflections of Wallander. And humanity of the investigator is even more present as the main subject of the book often seems to be the moods of Kurt Wallander face the last period of his life. Faced with the first signs of aging and death of his relatives, Kurt Wallander is also worried man. Old age and death frighten him. Her only hope is her granddaughter, she is its future and its reason to exist. Of course, we all regret that this investigation be the last because Kurt Wallander is a professional and humane investigator. But if you have not read the first surveys of Wallander, you can pretty much read them after this last volume.