Set in Malaysia, the film follows a young woman named Du Li An who falls in love with a man named Lin Sang in 1969 before he mysteriously disappears. Years later, after marrying a gangster and becoming stepmother to a teenage girl, Du Li An encounters a man who looks exactly like her vanished lover. The decade-spanning narrative blends elements of romance, mystery and coming-of-age storytelling.

Satsuki lost her boyfriend, Hitoshi, in a car accident. Unable to face up to his death, she spends her days unable to sleep properly. At some point, Satsuki began to jog at dawn as part of her daily routine, and on a bridge she always passes, she meets a mysterious woman named Urara.