Day Shift by Evie James

Can love conquer all in a war between those who save lives and those who take lives?

When a daughter of a powerful mafia family crashes into a tree thousands of miles from home, she lands in the care of a fierce, ink-covered nurse with a scarred heart—left with no memories, no past, and no idea who she is.
Constantine, Conan to his buddies, is a happy-go-lucky guy turned ER nurse who believes true love is just a fairytale. In a twist of fate, a beautiful woman arrives in his emergency department, unconscious and unidentified. Meeting Jane Doe in her most vulnerable moment, he is inexplicably drawn to protect her, plunging him into a perilous world he never knew existed.
Raised in the shadow of powerful organized crime, Anastasia faces an arranged marriage to a man she despises with death as the price of refusal. She agonizes over a life without affection or personal choices, all while holding dangerous secrets of her own. After a high-speed chase and a devastating crash, Anastasia wakes up in St. John’s Hospital with no recollection of where she came from or the threats that surround her. As she grapples with her amnesia, the threat of her ruthless family looms ever closer, putting her and everyone around her at imminent risk.