When Yip Chi-Yan, Lau Chun-Hung, Sung Yee-Long, and Cheng Chun-Hin are brought together again by an accident, their lives change irreversibly. Chi-Yan is a radio host. She and the other three were members of the same band eighteen years ago. The memory of them playing music together comes back vividly to them, and so does the pain they have all tried so hard to bury. Eighteen years ago her boyfriend, Ka-Ming, was killed in a hiking accident. Time flies, but she can never forgive Chun-Hung, Yee-Long, and Chun-Hin for failing to save Ka-Ming. As they reconnect, the four good friends and the people around them are drawn into a love vortex they have no control over.
剧集讲述主角刘俊雄(林保怡、罗钧满饰)、宋以朗(陈豪、杨潮凯饰)、郑振轩(黄德斌、梁证嘉饰)1992年攀登雪山时遇上意外,为求生存,只好把重伤的朋友许家明(张景淳饰)杀害充饥,三人事后带着自责,设法逃避这件事,而许家明女友叶梓恩(佘诗曼、蒋家旻饰)则放纵自己掩饰伤痛。四人在18年后的2010年重遇,而许家明的死亡真相亦告曝光,众人关系与命运出现戏剧性变化。
電台DJ葉梓恩因一宗意外,重遇年少時一起夾Band的好友劉俊雄、宋以朗和鄭振軒。這次重遇不單讓他們憶起十八年前夾Band的青葱歲月,還勾起了多年來各人努力隱藏的沉痛回憶,梓恩怨恨他們當年在登山意外時沒有救回男友家明的性命,以致自己在感情世界中跌宕迷失,無法走出困局,三位好友一邊心疼著梓恩,另一邊在各自的現實生活中掙扎求存,四人連同身邊人因著一個心結,捲進了錯綜複雜的感情漩渦中,等候救贖……