Late one night, a young couple are brutally murdered at a make-out spot by an unseen assailant, their bodies tossed into the nearby river. As the lifeless lovers drift slowly downstream, the residents of the town excitedly prepare themselves for their annual carnival, unaware that a machete-wielding maniac with a twisted grudge is lurking in their midst. When a group of teen revellers plan a late-night after party down in the local cemetery, they unwittingly set the stage for a bloodbath.

An Interpol agent is out for revenge against the gangsters that cut off his arm and killed his bride. This tragedy left him deeply depressed, and his battle with depression has to be won first before he can be thoroughly trained in martial arts. After his training, Ortega hunts down his adversaries for a final reckoning.