根据1970年真实事件改编。当时因为加拿大魁北克的独立分子经常制造舆论，致使官方出动大批警察逮捕可疑分子。当地政府请求国会发布戒严令。于是，警察和部队逮捕了一次集会中的近450人，把他们都投进监狱，却没有指控任何犯罪行为。他们在狱中饱受精神以及肉体的折磨。这种毫无任何理由的关押让人们感到震惊。

　　An alien starship crashes in a swamp in a U.S. National Park. Some mosquitos begin to feed from the alien's corpses, causing them to grow to the size of a vulture. These mutant insects became very agressive, killing every human being they find. Will the few survivors fight successfully against this nightmare...?

A woman finds herself locked in a stark room and given challenges.