Yang Zhe is an ordinary college student who is very busy with internships and postgraduate entrance examinations. He encounters a strange strange woman while having sex in a coffee shop. He thought it was just an awkward encounter, but he didn't want to go back to his hometown during the holidays. This "weirdo" turned out to be Liang Qin, the "uneasy" criminal police captain of his friend Aunt He's family, as his parents said. One is a quiet, introverted, step-by-step female college student, and the other is a front-line criminal investigation captain who is resolute, cold on the outside and hot on the inside. The two seem to have nothing in common in life, but they have a close connection because of a serial murder case. After Yang Zhe was accidentally involved in the incident, he offered to help Liang Qin collect evidence and volunteered to become Liang Qin's single-line "undercover". During the follow-up investigation, Yang Zhe also discovered a secret that had been shrouded in dust for many years. And Tao Yeheng, the seemingly enthusiastic and upright "flower protector" beside her, is not as simple as she imagined. After Tao Yeheng's true face was revealed, Yang Zhe fell into crisis several times, while Liang Qin silently protected Yang Zhe and helped her regain her strength when she was most depressed. Just when the truth of the case was about to come to light, Liang Qin suddenly disappeared and lost contact with him. A month later, it was revealed that he had "died in the line of duty." When Yang Zhe almost collapsed, Liang Qin's colleague Ye Fan told her that there was another hidden meaning in the matter, and Liang Qin was not really sacrificed. After learning about Liang Qin's plan, Yang Zhe risked his life and cooperated perfectly with Liang Qin, finally solving the strange case that panicked people in Rongcheng. The two also established a deep trust and love for each other during this ups and downs of taking care of each other. Yang Zhe originally thought that his parents and Liang Qin's family would not agree to the two of them being together, but he never expected that he would get the support of all his relatives. Liang Qin's innocence was finally recognized by his mother, and he and Yang Zhe went on a long journey of life together.
This is not only about the solution of an unsolved case, but also a story about two girls getting closer to each other and illuminating each other amidst secular prejudices and life choices.
Concept: She holds the gun and she writes the pen. Deep in the fog, they are each other's only way back. Under the bright line of solving the case, the heartbeats are also flickering. They are destined to become each other's pride.