该剧取(🤲)材于韩(😍)国最(zuì )早民间故事(shì )集《於于野(🧣)谭》中(🕯)歙(🌮)谷县令金聃龄(💝)（李敏镐(gǎo )(🥊)饰）(👊)将(jiāng )被渔(yú )民捕获的(de )人鱼(🏻)放(fàng )归大海(hǎi )的人(🥋)鱼传说。讲述数百(bǎi )年(🐩)之后濒临灭(miè )绝来到(dào )都市里的(🔍)人鱼沈清(📛)（全智贤(xián )饰）适应陆地生活和天才骗子许(🔎)俊(jun4 )宰（李敏镐饰）(🔫)重(💣)逢并(bìng )陷入爱情(🏓)的故(gù )事