Lu Hanchen, a legend in the police world, is an iceberg that Su Nian cannot move despite all his efforts. Until a well-planned trap turns her into the number one suspect. That night, he handcuffed her with his own hands, but in a deserted corner, he touched her cheek with his blood-stained fingertips, and his voice was as hoarse as gravel: "Now, it's my turn to prove your innocence."
