Teen John Riley is excited about his summer job sprucing up an old abandoned cemetery. It would give him a little money, allow him to play summer baseball, and be with his girlfriend, Susan. The summer is perfect until he discovers a crumbling tombstone on the outside of the cemetery fence. A girl who died at age sixteen in 1925 lay beneath it, and John is intrigued by a life cut so short. Enchanted by his thoughts of a teenager who died so long ago, John wants to know more about this girl. His obsession deepens until one day, he hears flirtatious tittering coming from the depths of the grave. Soon, the girl who is supposed to be dead appears. It doesn't take long for John to fall in love with her. Foolishly, he doesn't realize the evil in this possessive, beguiling creature. Yes, he should have left her lying beneath Balbena's Grave.