Sui Wai lost her fiance Ah Man in a car accident. With the obligations of life sitting heavy on her shoulders, she lives on only to find herself confiding in her beloved through a phone call. Dai Fai. a mini-bus driver who witnessed Ah Man's death, is always there offering her attentive encouragement and support, yet he himself also lives in the shadow of his last relationship. When Siu Wai strives to face the future without the man she loves, Dai Fai finds himself steadily falling in love with her.

In 1992, a heavy rainstorm caused massive power outage in Hong Kong. At that night, two young astrology enthusiasts, Moon and Sun, met under the starry night by the seaside. When their affection to each other grew, Sun was admitted into a boarding school and would move to another country in a few months under his father's plan. Like the sun and moon, the couple could hardly see each other despite that they were living in the same city, but their love endured amidst the separation and opposition from Moon’s mother. Overcoming the challenges from teachers, friends and family, time has come for Sun to depart…