Dr. Sara West knows only that her high-security military patient goes by the name “Joe,” that he’s in a catatonic state and can only repeat the code words, “I wept,” and that his post-traumatic stress disorder is a result of his last mission as a Shadow Watcher—a spy who spies on other spies. Her brother-in-law was also a Shadow Watcher. He committed suicide in the same sinister military facility where Joe, and other military men like him, are now in treatment. Sara wants to learn what caused her sister’s unshakable husband to kill himself and, in the process, to heal Joe, a compelling man who wins her love. But the secrets inside him reveal a shocking truth. One she isn’t sure they can overcome.