Ryoko, a cosmetics saleswoman, accidentally runs over a man, who turns out to be a serial rapist who escaped from a prison transport vehicle. Held captive inside her car by the bloodied man, she seizes an opportunity to escape. Wandering through the forest, she arrives at a mountain cabin where she is rescued by another man. However, he harbors twisted sexual desires of his own. Once discovered, he imprisons Ryoko too...
