When a gifted prep school art student vanishes, her devoted teacher discovers a sketchbook filled with haunting drawings of a girl who soon arrives at the school as a new student, claiming the disappearance was no accident--and someone is hiding the truth.

A recently divorced mother allows her troubled daughter to attend prom, but what was supposed to be the best night of their lives turns into a twisted cat and mouse game when the daughter and her friends are taken hostage by their limousine driver.