Mission Impossible Love(2015)

爱情碟中谍

When Ding Xiaoyu discovers that her boyfriend, Che Zijun, has secretly been dating another woman, she sees it as a betrayal and starts keeping a close watch on him. This sparks a battle of wits between the couple, with their friends, Pu Ermin and Tong Guoqing, getting caught up in the drama and a surprising romance begins to unfold between them.