Winai Thawattana

Captured international assassins are locked up inside a high-tech bunker known as the Killing Chamber. To break out of this concrete hell they must duel each other, fight deadly ninjas and battle against gangs of masked maniacs. And... if they survive this, they will have to confront Snakehead: the lethal, deranged top dog who will stop at nothing to kill 'em all!

Laila leaves Bangkok, besieged by law enforcement due to political and social unrest, and embarks on a road trip to the town of Pattani, in the far south of Thailand, along with her brother Sugood and Toi, a friend of his, to visit Sainab, the brothers' aunt, whom they barely know.