"The Bad Seed" is a musical adaptation of the 1954 novel by William March and the subsequent film. It tells the story of Rhoda Penmark, a seemingly perfect young girl who harbors a dark secret. As her mother, Christine, uncovers the truth about Rhoda's sinister behavior, the tension escalates, exploring themes of nature versus nurture. The musical features a blend of suspense and drama, with a score that enhances the chilling atmosphere. It delves into the complexities of familial relationships and the impact of inherited traits, making it a compelling narrative about good and evil.