When the calm and rational criminal investigation captain was forced to have a flash marriage, he discovered that he was marrying the mysterious and unpredictable profiling genius in the legend of the criminal investigation world. One agreement, two worlds, three bizarre murders. She could see the darkest corners of people's hearts from clues, but she couldn't read the tenderness hidden in his eyes. He could peel off the cocoons at the crime scene to find the truth, but he couldn't untie the old wound in her heart. When a serial killer caused a bloody storm in Jiangcheng, and when an old case that had been buried for ten years resurfaced, the "agreement couple" were forced to join hands - she profiled the murderer's psychology, and he tracked the traces of physical evidence. They are partners fighting side by side during the day, and strangers living in separate rooms at night. Until one day, she wrote in the profile report: "The next target is me." And his hand holding the gun trembled for the first time: "I can give you my life, but not her."
