Fred Figglehorn goes into music class to find his favorite teacher, Mrs. Felson, has been replaced by a teacher named Mr. Devlin. Walking home from school, Fred notices a strange girl named Talia following him. Fred believes he is being stalked, but she just walks the same way to school as him. Spying on Devlin that night, Fred sees him burying something, which he suspects is the body of Mrs. Felson. Kevin's mother invites Fred and his mother to a party for Mr. Devlin. At the party, Fred's mother falls in love with Mr. Devlin, and Fred is horrified to learn that Talia is actually Kevin's sister.