Nøgleord Locksmith

Alex Owens har mange jern i ilden. Om dagen arbejder hun som svejser, om aftenen er hun eksotisk danser på en halvskummel bar. Hvordan skal hun få tid til at træne til den audition, som kan være billetten til hendes store drøm om en balletkarriere?

Mu Xia is a talented locksmith. While dealing with a strange murder case within a locked room, Qin Zuo Man inadvertently discovers that Mu Xia is the new security consultant hired by the police academy. As more locked room cases arise, the simple-minded Qin Zuo Man, the monotonous Mu Xia and celebrity cop Tan You join hands to form an investigative team that seeks to uncover the truth through every door.