AllMovie

Inspired by a series of alien sightings that occurred in rural Utah in the 1950s, director Peter Semelka's sci-fi thriller follows a group of thrill-seeking teens as they set out to explore an abandoned mill on Halloween, and discover the true reason that the locale believe it to be haunted. Confronted with irrefutable proof that extraterrestrials exist, the frightened teens must fight for their lives against a force far beyond their comprehension.