A sudden medical accident triggered a series of mysterious cases, and young doctor Jiang Bei was accidentally involved. In the process of tracing the truth, his wife Lin Yue gradually uncovered a shocking conspiracy that spanned ten years. The medical accident that was covered up, the son of the former dean who mysteriously disappeared, the key evidence that was constantly being destroyed... All the clues pointed to an unknown secret. Faced with many crises, how should Lin Yue and Jiang Bei find the truth in the darkness? And what kind of shocking inside story will the mysterious man signed "L" reveal?
