On the night of the 2012 doomsday prophecy, high school students Ka Ming and SzePui met and fell in love becasue of a sudden electrical power blackout. However, entering adulthood shatters their innocent romance. Ka-Ming becomes an engineer, working under an exploitative 24/7 on-call work culture, while Sze Pui struggles to manage her demanding early childhood education internship. The immense stress and constant miscommunication have left them living in completely different “time zones.” When Ka-Ming’s colleague was critically injured in a tragic industrial accident, Ka Ming falls into a deep cycle of guilt and isolation. Compounded by Sze Pui’s misunderstanding at work involving a female coworker, the situation pushes their relationship to collapse under the weight of reality…
2012年末日預言當晚，中學生陳家明與周思蓓因為一場停電相遇相戀。然而畢業後，這份純粹的戀情被生活的重擔擊碎。家明成為了一名機電工程師，24小時隨時候命，不得不經受殘酷的剝削；思蓓則在幼兒教育實習中疲於奔命。沉重的工作壓力與溝通誤會，讓兩人彷彿生活在不同的時區。
一場工業意外令家明的同事重傷，他陷入深深的陷自責，再加上一位女同事產生引發的誤會，兩人的愛情最終在現實重壓下破裂。多年後，昔日的戀人在校友會上重逢。歷經歲月洗禮，他們重新並肩坐在海傍，解開當年的心結，在日落中找回了那份跨越時差的默契。