After awakening on the brink of death, Lin Wan becomes a crime radar who can empathize with murderers! Guided by this strange connection, she vows to bring the "Bride Killer" to justice! Little does she know that this powerful crime-solving tool is also a poison that drives her to self-harm. As she fights evil, she is gradually consumed by it. Fortunately, the down-and-out private detective Cheng Yu and her forensic pathologist friend Xiao Mo stand firmly by her side, becoming her sharpest spear and strongest shield! However, on the road to catching the killer, her most dangerous enemies turn out to be not only the cunning murderer but also the people closest to her whom she trusts most. Through shared pain, she hunts the killer and faces death head-on!