Night Fever: Asian Games silver medalist boxer Tae-gang and former K-pop star A-ri struggle to make ends meet in the boiling city of Bangkok while dreaming of a fresh start in Alaska. However, Tae-gang is swept up in a murder and arrested by Interpol agent Do-joon and Bangkok police. Imprisoned for something he did not do and cut off from the outside world, Tae-gang devises a plan to overturn his wrongful conviction and get even with those responsible.