Shen Xun, a top psychological counselor, is a criminal profiler trusted by the police. Seven years ago, her fiancé and criminal investigation captain Gu Zheng died in the line of duty while hunting down a serial killer. His body was not found, and her heart was buried with him. Until a new serial murder occurred. The perfect crime scene was filled with details that only she and Gu Zheng knew. The newly transferred deputy captain of criminal investigation, Lu Chen, intervened in her life and investigation with a strange face and familiar atmosphere. When all the evidence strangely points to the "dead" man, when trust and memory fall apart under professional scrutiny, Shen Xun must open his own heart and find the only truth among lies, betrayal and unquenched love. This is a double game between psychology and criminal investigation, and it is also a cruel "heart testimonial" of love and faith.
