The new science teacher Dr. Julian Olcott (Carl Schell) with a mysterious past arrives in an institutional boarding school for troublemaker girls. Along the night, the intern Mary Smith (Mary McNeeran), who is blackmailing another teacher - Sir Alfred Whiteman (Maurice Marsac) - with some love letters, is slaughtered by a werewolf. The detective in charge of the investigation attributes the crime to a wolf, while her mate Priscilla (Barbara Lass) believes she was killed by Sir Alfred. On the next days, other deaths happen in the school, reducing the list of suspects.。二十五年前,霍氏集团总裁夫人为了不让小三生的儿子抢走自己的一切,把刚出生的女儿与闺蜜的儿子调换。二十年后,真正的霍氏千金温蔓和霍氏现任总裁霍祁琛相爱,谁知温蔓新婚夜在陆尧和继妹温婷的合谋下离开,在霍祁琛心里埋下了新婚夜出轨的种子……。