The Moth Diaries(2011)

movie - first aired/released 2011-09-06 - audience 5.3

Directed by Mary Harron

Rebecca is a young girl who, haunted by her father’s suicide, enrolls in an elite boarding school for girls. Before long, her friendship with the popular Lucy is shattered by the arrival of a dark and mysterious new student named Ernessa, whom Rebecca suspects may be responsible for the rising body count at the school.