Woman in a Box: Virgin Sacrifice (1985)

"One woman hunted in the blue night.... Handcuffing, water torture, and piercing! This is a horrifying SM film based on a true story that shook the U.S.A!"

A young virgin is captured by an abnormal couple. The girl is kept locked in a wooden box, and subjected to sexual torture and abuse. Loosely inspired by the real-life case of Colleen Stan.