A group of friends sets off for a weekend getaway on Friday the 13th to challenge a supernatural belief only to realise that some things are not to be messed with.
After learning the art of muay thai fighting from skilled masters, small town friends Piak and Phao move their passion to Bangkok, where they become active in underground activities that put what they've learned to the test. But in the process of fighting for their lives, they also resurrect the sport and cement the bonds of their lifelong friendship.
A story of two men who love each other but their love can never be fulfilled. This love should have never happened. But when it flourishes, there is nothing to hold back.
