Boundary: A guilt-ridden and disheveled taxi driver named Limuel Alcantara picks up a mild-mannered businessman named Emmanuel Lazaro as his last passenger for the night. Limuel's conspiracy to bring Emmanuel to the hideout of robbery gang leader Diego Gawaran takes a wrong turn. Their journey together from Manila to the foothills of Antipolo becomes a tension-filled and claustrophobic experience. The only way out of this seemingly eternal ride is to face their damnation.