It all starts with a simple lie. That lie leads Yu-Mi (Bae Suzy) to live a completely different life. Her husband is Ji-Hun (Kim Joon-Han). He is an ambitious man who pursues his goals. Yu-Mi is friends with Ji-Won (Park Ye-Young). Ji-Won is the only person Yu-Mi can trust and rely on. Hyun-Joo (Jung Eun-Chae) enjoys her good life, without any consideration or malice toward others.