女歌星斯凯·莱利(娜奥米·斯科特 Naomi Scott 饰)因背痛往同伙家取药,却目击同伙残忍自杀。几天后,各类希罕诡异的现象让斯凯大大发狂,身旁的亲交情友都莫名对着她诡异微笑。一天一天曩昔,斯凯才知道本人感染了微笑漫骂,而受害者没有一位活过一周的,斯凯只能向假死医师莫里斯(彼得·雅各布森 Peter Jacobson 饰)乞助……
Unlike most people, Melody cannot walk or talk, but she is smarter than most of the adults who try to diagnose her. Her classmates dismiss her as mentally challenged but Melody refuses to be defined by cerebral palsy.