The "Miscellaneous Investigation Team" (ME) led by slow-working detective Ding Zhimo specializes in handling trivial cases and does not compete with the world. Until the radical "pregnant woman" Long Lisha joined, vying to be the "king of corpses" in the team, thus changing the fate of the team. Lisha has "no bottom line" in solving cases, which is very different from Zhimo's style. The two have been at odds with each other during the investigation. Che Yichen worked for face, but due to a mistake, his colleague was injured and disabled, and he has been sloppy since then. He met his old lover Gu Zhiqing again in ME, and started a triangle relationship with the young police officer Li Junji. One operation revealed Zhimo's long-standing secrets, and Yichen's mistake put Lisha in a life-and-death situation...