Chen Feng has been excellent in both character and learning since childhood. He always maintains the best condition to face any challenges in life. In the eyes of the outside world, Feng is a big winner in life; he has a successful career, inherited the family business, and established a happy family with his girlfriend, Su Wanyi, whom he met in college. Until one day, a mysterious murder occurred in Yi's home. Yi, who was at the scene of the crime, was in a deep coma due to a brain impact, and the most important clue of this murder was witnessed by Yi. Feng, who has always had a smooth life, found that his perfect life is no longer perfect, and the relationship between the couple slowly began to rewrite. During Yi's coma, Feng met a very compatible subordinate, Jiang Zishan, at work, and began to have a deep affection with Shan for a long time, and started an underground relationship. At this time, Feng also began to find that his original feelings for Yi had changed, and began to ignore Yi's condition, which made Yi's junior and trainee inspector Ji Jiexuan suspicious. Xuan discovered that Feng had recorded a false confession in a murder case that happened seven years ago. He began to secretly investigate Feng and decided to overturn the case for Yi's loved ones. When Feng decided to immigrate to a foreign country with Shan to live a life of two people, he received a notice that Yi had finally woken up from her coma and found that Yi had lost all her memories. Feng decided to temporarily put aside his feelings for Shan and return to Yi to take care of her. During the period when Yi recovered her memory, she slowly discovered that Feng was hiding many secrets that could not be told. The couple began to suspect each other and had their own ulterior motives. Yi, who lacked a sense of security in her marriage, decided to ask Xuan for help. With Xuan's help, Yi began to remember important clues to the murder case that year. In addition to Yi, she also saw her most familiar back at the crime scene. She was very upset about Feng... On the other hand, Feng was also very upset about Yi... At this time, a murder occurred in the Chen family. Is it really better for the two couples not to meet? Who is the real murderer? Is it him, her, or them?