Beneath the glittering facade of London lies a dark underworld where rival gangs battle for power. Melanie, the fierce daughter of a mafia leader, returns to the city after years of hiding in Italy. At a glamorous masquerade ball in London, Melanie meets the man who has haunted her for years-Harry, a dangerous rival leader. His mission is to deliver her to her ruthless mother, Carolina, who wants her dead.

Mallory Monroe is a surgical intern at Grand Meadow Hospital. Harry Styles is a prestigious pediatric surgeon who will do anything to save his patients lives. But what will happen when their paths cross before they even make it through those hospital doors?