Former cop Shifeng Cao (Chapman To), now unemployed and living off of his savings, learns of 400,000 HK bounty placed on a wanted criminal. He then makes a trip out to the Lazy Inn Hotel in hopes to track the criminal’s whereabouts.

Wah and Kinki both working at the same department of a computer company. Both of them are not getting on very well initially, but friendship develops when they get to know each other after a while. When Wah starts to realize his emergent fondness for Kinki, his ex-girlfriend reappears and plans to gain back his affection. In addition, he notices that his ex-girlfriend arranges a guy to pair up with Kinki. At the same time, his supervisor would like to lay him off at work.

Johnnie To’s character-centered drama follows a Hong Kong firefighting crew as they take on harrowing rescue missions and navigate personal dilemmas.