Need You Now — E.A. Reynolds

A shared past destined them to meet again, but after watching his father kill his mother, Dr. Riley Langton determines to never give his heart to anyone. However, the whispers of a long-forgotten past fraught with secrets, deceptions, and a love draw him to the one man he was never meant to resist. Dr. Trace Collins takes one look at Riley and knows he's the man for him. He's set on winning Riley's heart and earning his trust no matter how hard Riley tries to push him out of his life. Then, their shared past collides with their present, and the danger that caused their deaths begins to stalk them and those they care about once again. It is up to Riley and Trace to join forces to stop a killer's plans to erase them all, but will their efforts be enough to prevent disaster?