Gao Renjie (Zhao Qing), Mei Xiaoyang (Lin Jidong), and Li Shimin (Jaycee Chan) are colleagues at the same pet hospital and have a close personal relationship. The wise man Li Shimin is still single, but he often gives various ideas to the other two married men. The three met Donghua (Xing Shan) because of work, and after Li Shimin's careful organization, they met Donghua's best friends - Baibai (Shen Taoran) and Yawen (Jang Nara). Li Shimin fell in love with Baibai, while Gao Renjie and Yawen fell in love, and Donghua spent a night with Mei Xiaoyang. After one night, the three men each had their own concerns. Gao Renjie was enjoying the happiness of having two wives between his wife Jiji (Shi Lin) and his lover Yawen, Li Shimin was in love with Baibai, and Mei Xiaoyang was in a cold war with Donghua due to negligence. However, no matter how carefully an extramarital affair is concealed, it will eventually be exposed. The three philandering men will eventually have to face the consequences and make painful choices between kinship, love and family.