The Bad Seed (movie)
On her piano, eight year old Rhoda Penmark (played by Patty McCormack) plays the French song "Au clair de la lune" while her father says his good-byes and goes on military duty. Rhoda is under the care of her mother Christine (Nancy Kelly).
Rhoda begins as a well-behaved child. As the movie goes on, she becomes evil and sinister. She commits murder, steals and sets fires.
A lightning bolt during a rainstorm kills Rhoda instantly.
The Bad Seed was remade for television in 1985.