Khru Phensri is the principal of Nongmaeped Witthaya School. With the school at risk of being shut down, Khru Phensri does all she can to prepare her school for assessment. As part of her efforts, she hires a beautiful new English teacher Khru Lady. Shortly after Lady's arrival, the school's chickens are found brutally slaughtered. Khru Phensri witnessed Lady consume raw entrails and believes her to be a ghoul. Khru Phensri wants nothing more than to expose Khru Lady, but Lady is a caring and beloved teacher. Plus, her kind little brother Khru Boy has feelings for Lady.