Dr. William Koval, a pragmatist with little faith in humanity, prefers to dwell in the eerily comforting microscopic realm, where he is master of his domain. But his worldview is upended when he decides to go on the English walking tour his wife had been planning before her murder three years earlier. Only when William confronts his past, including his troubled marriage, will he find a way to rejoin the living, to move forward, and perhaps love again. The real journey, he discovers, lies within.