Gladys Swartz was a plain girl boiling with suppressed desire. In a book on the occult, she read of a bodily possession and conceived a devilish plan. She brought about her own death by accident, then, wandering the earth as a restless spirit, she attacked and conquered the body of the lovely Peri Lee. After a desperate battle, she drove the young girl's soul down into the depths of her psyche. Then she led the life of a lovely wanton, but, more and more she came to realize that she had committed a terrible crime. When the fiancé of the lovely young girl began to suspect that all was not well, a fight to the finish was fought in the dark halls of a haunted mind.