After a car accident, Shen Hanxing realizes her lover, He Chen, has been replaced by his twin brother, He Can. To uncover the truth, she pretends to be engaged to He Chen's uncle, Zhong Sihuai, in order to get closer to He Can. However, as her investigation deepens and their relationship grows more complex, Shen Hanxing begins to suspect that the man she's been with all along may actually be the real He Chen.

Qian Jing is a strong and independent woman, who was the only one able to take the position of personal assistant for the demanding CEO, Gu Yi. Soon, their relationship becomes not only professional but also romantic. The problem, however, is that nobody knows the true face of Gu Yi, who after a car accident, from being tender and understanding for a moment, can switch in a few seconds to being cruel and obsessive, especially towards Qian Jing. Soon, Qian Jing not only has to deal with her complicated feelings for her boss, but also her past, especially since her motives for becoming Gu Yi's assistant in the first place are not as noble as they might seem.