Fifteen years ago, Clara Hart saved billionaire Adrian Reid's life with a blood donation, leading to a childhood promise of marriage. But on their wedding day, a cowardly Adrian fled the country. Years later, they are legally married but total strangers. Due to a series of bizarre misunderstandings and a phone mix-up, Adrian mistakenly believes Clara's unfaithful colleague is his childhood savior. Blinded by disdain for his 'wife,' Adrian relentlessly seeks a divorce, unaware that the woman he is crushing is the very one who saved his soul. Will the truth emerge before the summer ends, or will their second chance be lost to a web of lies?