In a seemingly simple traffic accident, the only witness disappeared mysteriously. When everyone believed that this was just an ordinary escape case, criminal defense lawyer Lin Mo was driven by his obsession with the "truth" deep in his heart and resolutely embarked on the path of pursuit.
Beneath his calm and rational appearance, he hides an unknown traumatic experience, making him extremely sensitive to every detail of the case. However, as the investigation deepened, he discovered that the missing witness Chen Yu was not an "ordinary passerby". There was an ulterior secret hidden behind her, and her "witnessing" was no accident.
Detective Zhang, a criminal police officer who had interacted with Lin Mo in the past, seemed to be inextricably linked to the case. In the urban concrete jungle, everyone wears a mask and everyone has a secret. As the pieces of the truth gradually come together, Lin Mo's professional requirements and his inner sense of justice conflict fiercely. Not only does he have to face the complicated cases, but he also has to face his own inner fears and struggles.
Is this a carefully planned disappearance or an exposure of the abyss of human nature? When the truth is revealed, will it be redemption, or a deeper psychological purgatory? "The Hidden Witness" will take you into a psychological puzzle about truth, lies and the distortion of human nature.