用螺丝将部件拧紧，确保结构稳固安全。かたと花火と动漫无删减

　　A young woman is hired by a wealthy but sinister man to tutor his two children at the family's isolated estate. When the woman gets there, she finds that the two children are not quite what they seem to be--in fact, they are possessed by the spirits of the evil Quint and his lover.