 It s a wet summer day on upstate New York s Route 90. A serial killer is loose from the local penitentiary. A hymn-singing grandma picks up a shadow-boxing hitchhiker (she s Helen, he s John Thomas). She offers him a ride to the end of the road, where Route 90 hits the Interstate. He jumps in. They chat: he s headed out of state; he s been "involved with law" but "needs to, you know, get away." She turns on the radio, and he observes that music calms the savage beast. He s carrying a large knife and asks her to pull over so he can answer nature s call. He s back quickly, inviting her to see a beautiful sylvan scene just off the road out of sight. Will she follow? What lies in store?