Arnald Indridason's detective stories enjoy the well-deserved love of readers not only in his native Iceland, but also in all European countries. His books have repeatedly won prestigious literary awards, and critics call Arnald an “international sensation.” The novel "The Quagmire" was successfully filmed in 2006. Reykjavik police find the body of a lonely elderly man murdered in his own home. There is not a single clue in the case - no motives, no evidence, except for an extremely strange short note. However, investigator Erlend feels that behind the crime lies a long-standing and deeply personal drama. Bit by bit, he begins to recreate the picture of a dark medical mystery, rooted in the past and which has destroyed more than one life...