William Sandberg, once a well-respected military cryptologist pursuing cutting-edge research, is a ruined man. His career is in shambles, his marriage is over, and he's succumbed to a dark depression. But William's talents haven't gone unnoticed. A nameless, top-secret organization abducts him and tasks him with a daunting mission: decode a message that will reveal the disastrous prophecies hidden in our DNA before it is too late. Meanwhile, William's ex-wife Christina is haunted by his absence and suspects there is more to his disappearance than just the reclusive impulse of a depressed man. Driven by her hunch, she sets out to find him and joins an eclectic cast of characters all drawn to a mysterious chateau in the Alps where the secret organization is plotting something-but is it revenge? Or a rescue mission? What is the organization hiding? What does the code have to do with the potent virus suddenly spreading around the world? And can William uncover the truth before it's too late?

Translation of: Slutet pa kedjan.

Translated from the Swedish.