该片讲述了两个拥有患有精神分裂症儿子的母亲住在一个公寓里,展开的心理惊悚片,因为反映了韩国社会冰冷的一面而让人期待。Ae-ran, a proud mother, hears a shocking news that her son Do-hoon has developed schizophrenia. Afraid of losing her perfect daily life, Ae-ran decided to hide his son's illness, but her secret gradually turning her anxiety into madness.