At a 7th anniversary dinner, Guan Xin learns the truth she never wanted to face: her husband Shen Zhuo is cheating with her best friend Xu Jing. The shocking truth leads to a showdown on a cliff, where Guan Xin accidentally falls. She later returns, acting as if she has amnesia, all to quietly collect evidence. Xu Jing wants Shen Zhuo to divorce Guan Xin and choose her instead, but Shen Zhuo is only focused on the family fortune. When everything reaches the cliff, how will this tangled betrayal end?