College students Terry, Nancy, and Gloria, on their way to a rock concert, crash their car in a torrential rainstorm, badly injuring one of them. Seeking shelter and aid, they come across a house occupied by a man-hating mother and her daughter...and they soon wish they hadn't.

Four American best friends decide to take the back roads travelling to a wedding in England, on their way a deadly secret forces the girls to be stranded in the woods, where they discover a house occupied by Miss Perkins.