詹妮弗·洛佩兹饰演的离婚少妇，与隔壁邻居，年轻学生诺阿（《舞出我人生》男星瑞安·古兹曼饰）擦出火花，生活随之急转直下…… J Lo扮演一位教师，丈夫是个花心大萝卜，离婚后不久，隔壁搬来一位英俊美少年诺阿，他与自己的儿子关系融洽，他去她的班上上课，他说她很美。于是他们越走越近，东风一夜之后，J Lo想要中断这不伦的关系，诺阿却成了危险，变态的跟踪狂，要毁了她的生活，她的工作，她的一切。When a handsome, charming teenager named Noah (Ryan Guzman) moves in next door, newly separated high-school teacher Claire Peterson (Jennifer Lopez) encourages his friendship and engages in a little bit of harmless (or so she thinks) flirtation. Although Noah spends much of the time hanging out with Claire's son, the teen's attraction to her is palpable. One night, Claire gives in to temptation and lets Noah seduce her, but when she tries to end the relationship, he turns violent.