Fans of Jo Nesbo, The Killing, and Scandi noir will love this gripping thriller from international bestselling crime-writing sensation

A closed case hides a terrible secret . . .

Department Q solves the unsolvable.

So when a file on the brutal murder of a brother and sister 20 years ago lands on the desk of Detective Carl Mørck, he doesn't understand why.

Because the killer has already been found, and the case is closed.

Why has it turned up on Carl's desk?

And more importantly, who put it there?