The Bad Seed is a 1956 psychological thriller film directed by Mervyn LeRoy. It tells the story of a young girl, Rhoda Penmark, who seems to be a perfect angel, but is in fact a cold-blooded murderer. Her mother, Christine, slowly begins to realize
From Wikipedia
The Bad Seed is a 1954 horror novel by American writer William March, the last of his major works published before his death.