This gripping crime thriller by Jussi Adler-Olsen is the third book in the Department Q series, following the enigmatic detective Carl Mørck and his team as they investigate a case that tests their limits. When a woman is found locked in a soundproofed cage, it soon becomes clear that her survival is only the beginning of a terrifying investigation. As Mørck and his team delve deeper into the world of human trafficking and political corruption, they must race against time to save more victims and find the perpetrator before they strike again. A compelling blend of suspense, intrigue, and social commentary, this captivating novel will keep readers on the edge of their seats until the very last page.