Мой дорогой незнакомец

Detective Song Cheng discovers a link between a current case and an unsolved crime from four years ago, both tied to key witness Yu Xiao. As he digs deeper, Yu Xiao’s hidden past comes to light. She joins the investigation with Song Cheng’s support, but mounting obstacles threaten their pursuit of the truth. Together, they fight to uncover the real culprit and bring justice to light.