Emma, a surgeon who's been on her feet all night, arrives at her fiancé's apartment to surprise him and finds him in bed with her best friend. Heartbroken and furious, she walks out — and into the path of Aiden, a cold, impossibly composed billionaire who has been quietly watching her for reasons she doesn't yet understand. As Emma rebuilds from a betrayal that cost her three years and her closest friendship, she discovers that Aiden's interest in her is older and more deliberate than any accident.