On the morning of his fifth wedding anniversary, Nick's wife Amy suddenly disappears. The police immediately suspect Nick. Amy's friends reveal that she was afraid of him, that she kept secrets from him. He swears it isn't true. A police examination of his computer shows strange searches. He says they aren't his. And then there are the persistent calls on his mobile phone. So what did really did happen to Nick's beautiful wife?

Dr. Jonathan Ransom, world-class mountaineer and surgeon for Doctors Without Borders, is climbing in the Swiss Alps with his beautiful wife, Emma, when a blizzard sets in. In their bid to escape the storm, Emma is killed when she falls into a hidden crevasse. Twenty-four hours later, he is the subject of an international manhunt and the target of a master assassin. His only chance at survival lies in uncovering the devastating truth behind the secret...