Gerri Dandridge is a scientist but through the night she transforms into a vampire with an unquenchable thirst for blood. When an organization of senior high school students travel abroad to study in Romaniathey find themselves ensnared within her frightening web of bliss and dread. Charlie and'Evil' Ed must stop Gerri from drinking and bathing in the bloodstream of a'moon virgin', who happens to be Charlie's ex girlfriend.