The line between obsession and love has disappeared.

After a hellish captivity that stole most of his memory and all of his soul, Marcus Knight has one focus: keeping Dr. Penelope Kim safe. She risked her life to save him once, and she's all that matters. For months he's protected her from afar, knowing one touch—one kiss—will never be enough.

Penny Kim is one of the few doctors still living, and she alone holds the key to ensuring the human race continues. Her nights are consumed with dreams of the powerful soldier who's made her safety his one mission. Life is short, and she's unwilling to wait—unaware of the danger already hunting them both.