Tom Spencer, a brawny football star with little love for botany, accepts an odd invitation from his old professor to witness a rare aquatic event. As moonlight rises over a mist-shrouded pool, the vallisneria plants begin their eerie bloom—and something far stranger awakens. Drawn into a dreamlike spectacle of haunting beauty and deadly desire, Tom watches ghostly figures enact a chilling ritual of love and sacrifice. But when one mist-maiden remains, the line between illusion and reality vanishes—with a kiss.