该片讲述了85岁高龄的林女士(金英玉饰)夹在扮演着孝子的儿子(金永敏饰)和如家人般的疗养护工(朴成妍饰)之间的故事。聚焦“像外人的家人”和“像家人的外人”,讨论了是因为家人而一起生活还是因为一起生活而是家人的现实问题。。During a visit to friends, Sara begins having visions and is attacked by an unearthly creature in her friend's swimming pool| she soon discovers that anyone who comes into contact with the water is in danger and she is driven to confront the mystical and malevolent creature lurking in the depths.。