Sharp Objects movie plot

The reporter's Camillehad several girls in her hometown murdered. Due to work, she was forced to return to the place where the ancient southern aristocracy and drug addicts lived together. For many years, she has not spoken to her mother who suffers from depressionand her weird sister who is only half related to her. Then Camille discovered that apart from coming from one place, she had more in common with these dead girls. Camille gradually revealed the mystery of the murderer and the motive of killing those girls .