The Troubled Man by Henning Mankell

In this gripping mystery, the seasoned detective Kurt Wallander finds himself drawn into a complex web of espionage and family secrets when his daughter's father-in-law, a retired naval officer, goes missing. As Wallander delves deeper into the investigation, he uncovers a trail of Cold War intrigue and personal betrayals that challenge his perceptions of loyalty and truth. Amidst the backdrop of Sweden's political landscape, Wallander grapples with his own aging and mortality, making this case not only a professional pursuit but a deeply personal journey.