Ray and Gilbert's fishing trip takes a terrifying turn when the hitchhiker they pick up turns out to be a sociopath on the run from the law. He's killed before, and he lets the two know that as soon as they're no longer useful, he'll kill again. The two friends plot an escape, but the hitchhiker's peculiar physical affliction, an eye that never closes even when he sleeps, makes it impossible for them to tell when they can make a break for it.
People are shot and killed off-camera. The protagonists are held at gunpoint throughout most of the movie. The antagonist is shooting a can out of someone’s hand and then forces a friend of that person to do the same. Nobody is visibly hit by a bullet.