Watch Are You in the House Alone?

A young girl moves from the big city after someone broke into their home. She receives a letter in the mail telling her she is being watched. After receiving more letters and mysterious phone calls, she tells her principal at school since her mother is too busy to listen. While babysitting one night, she gets a phone call asking her was she alone. The young girl is scared to death. She soon finds out another girl at her school is receiving the same phone calls and although she has an idea who it may be, she has to prove it.