Deadly Lessons

Deadly Lessons is a 1983 madeforTV movie starring Larry Wilcox, Academy Award winner Donna Reed, David Ackroyd, Diane Franklin, future Brat Packer Ally Sheedy and Nancy Cartwright, later the voice of Bart Simpson.

Murders began occurring and Det. Russ Kemper Wilcox comes to investigate. As more girls are killed, everyone wonders not only who is committing the murders but also who will be next. Stephanie attempts to find the murderer herself, who only kills when a girl wanders around alone. Stephanie enlists the help of the new attractive stableboy, Eddie, who instead falls in love with her for not being like the other girls. Soon, Eddie is beginning to be suspected as the murder.Towards the end of the summer, the girls are slowly evacuated from the school, but Marita is kidnapped on the day she is set to leave by the schools janitor, Robert, who bounds and gags Marita in his quarters on campus. He is apparently deluded into thinking his daughter was Maritas mother which was not true by any means. However, Marita signals from her captivity to Stephanie who has Kemper follow her to arrest Robert and save Marita from being killed. ........

Source: Wikipedia