Deidre Sinclair is rich, beautiful, smart and going blind. Hired to take her on a world tour is Remi Lamont, a reluctant battle-weary ex-Marine. As she tries to accept her own fate she catches glimpses into Remi's tortured mind. Eventually his PTSD and her undisclosed impairment not only threaten to derail their trip and their relationship, but ultimately threaten to take the life of one or both of them.