在那个动荡的四、五十年代，爱情绝对得来不易——一件订情信物、一首情歌、一个约定都足以令恋人魂牵梦萦。 身份复杂的警察房道龙（刘青云 饰）遇上具有传奇色彩的女子陈月荣（汤唯 饰），他们的爱情故事横越了三个城市：他们在安徽相爱，在上海分离，彼此仍坚守一个约定——在香港等候重聚。那夜，房道龙在港岛岸边等待接载月容的小船靠岸，却不料小船发生变故，月荣最后能否顺利抵港，与道龙开展新生活？ 影片取材自真实故事，讲述一段父辈的爱情故事。
Eun-hee is an actress whose acting is poor, but she also plays in her real life. Her performance full of lies helps her feel she creates different personalities each time she dates separate men. Eventually a pack of her lies is tangled up and everything is about to be messed up. Ryohei, a Japanese writer, visits Seoul for his book launch party. He often writes a story pushing characters into a corner and then makes it be a tragedy. He meets Eun-hee by chance, who is in a trouble, just like in his novels.
一场意外的发生让李进儒（张雁名 饰）的事业跌入了谷底，对自己亦产生了怀疑。为了治愈受伤的心灵，李进儒反悔了故乡宜兰，在那里，他邂逅了曾经的青梅竹马以容（卓文萱 饰）。曾经，缘分的阴差阳错让他们错过了彼此，如今，命运般的重逢能否给两人的感情一个新的机会？不幸的是，以容发现自己患上了难以治愈的疾病，移植骨髓成为了保命的唯一方法。 向阳（巫迪文 饰）曾经是挥金如土桀骜不驯的富二代，直到他遇到了现在的女友于乐（霍诗丹 饰），于乐的存在让向阳懂得了生命的意义，可于乐自己却患上了淋巴癌。为了让于乐在快乐和幸福之中度过最后的时光，向阳带着她踏上了旅途。
