A group of students are trapped at a school after a time capsule from the 1950's is cracked open by an earthquake. The students soon realize that ghostly spirits escaped from the time capsule, and possessed the principal and three other teachers.

Becca, an anxious, non-vampire teen is torn between two boys. Before she can choose, Becca must get around her controlling father, who treats her like a child. Meanwhile, Becca's friends contend with their own romantic issues – all of which collide at the prom.