1999: The Kim family is struggling to move on after their mother, Sunny, vanished a year ago. Sixty-one-year-old John Kim feels more isolated from his grown children, Anastasia and Ronald, than ever before. But one evening, their fragile lives are further upended when John finds the body of a stranger in the backyard, carrying a letter to Sunny. 1977: Sunny is pregnant and has just moved to Los Angeles from Korea with her aloof and often-absent husband. Her loneliness and isolation are broken only by a fateful encounter at a bus stop. The unexpected connection spans the decades and echoes into...