When law graduate Cass Walker wakes up after surviving a car accident, she is flooded with memories of a man named Devin. The only problem? Devin - as confirmed by family, friends and doctors - doesn't exist. Everything about him, from his coffee-brown eyes to the slightly crooked angle of his pinkie finger to his high-wattage charm, is a figment of Cass's coma-addled imagination. Still, she can't get him out of her head. So when she happens upon the real Devin a year later in a Cleveland flower shop, she's completely shocked. Even more surprising is that Devin actually believes her story and - despite his protective younger brother's doubts - they soon embark on a real-life romance. With her dream man by her side and a new job at a prestigious law firm, Cass's future seems perfect. But fate might have other plans . . .