Oh Sun-hee, the greatest star from Wando, files for divorce after a long-standing conflict with her husband, Kang Sung-gi, and heads to her hometown, Wando, to escape the noisy media. Initially planning to visit her parents' graves and then return to Seoul, she is drawn back to Wando by a familiar restaurant sign. There, she unexpectedly reunites with friends from her childhood.

Sul-ji, exiled from North Korea 2 years ago, is cheerful lady who is working at flower shop. Using her experience that drew propaganda paintings in North Korea, she draws wall-painting for part-timer. Desperate Broadcast producer Shin-woong, discovers her and trying to make hit documentary about her, but she hesitates minding her families still in North. Eventually she decides to go in under the condition that she hides her identity.

Two families collide when their children fall in love. One mother sacrifices everything before she dies to secure her children's future, while the other ruthlessly abandons her daughter for greed. Caught between ultimate sacrifice and ultimate betrayal, the two leads must survive the destructive secrets of their rival households.

《狎鸥亭白夜》是韩国MBC于2014年10月6日播出的日日特别企划。以电视台演艺圈为背景的家庭剧场内容，讲述了四家人之间的故事。