《Inseparable》 revolves around Xu Yeon's memory gaps, the truth about old cases and the secret cracks in intimate relationships.The story begins with a seemingly peaceful but abnormal reunion. The love, hate, deception and protection between the characters are pushed away layer by layer, and clues that have been suppressed in the past also resurface with new events.

In the play, Xu Yan constantly encounters conflicts between memory fragments and real evidence in the process of pursuing the truth.She not only has to distinguish between the good intentions and lies of the people around her, but also faces a crucial night that she has experienced but cannot fully remember.As the investigation deepens, the emotional line is no longer just a sweet and sadistic relationship, but is intertwined with the suspense main line: every time she gets closer, a hidden hurt may be revealed; every time she chooses to believe, it may also push her into a more dangerous situation.

The whole drama progresses in 12 episodes, and its rhythm focuses on the reversal of character relationships, the pursuit of old cases, and the revelation of emotional truths.Xu Yan, her relatives and friends, and the key figures involved in the incident formed a complex network of relationships in which amnesia, substitution, misunderstanding, protection, and guilt were intertwined.The story ultimately points not to a single answer, but to how the characters face love, debt, and self-choice again after the truth arrives.