Ran participates in a death match in order to save her missing sister Yuzuki.

On the night that low-level gambler Daz Clemance is leaving Birmingham to start a crime-free life with his girlfriend in Spain, he is accused of fixing an illicit bareknuckle fight. Beaten, stabbed, and locked in a cupboard, Daz is left armed only with his phone and his wits. Will he escape from the locked and guarded room before his boss wreaks revenge?