《它在身后》是一部讲述未知灾难的惊悚片，片中女主在与男友完成美好的事情之后却突然遭到了粗暴的对待，原来其中另有隐情

洁依热衷青春美好的朦胧恋情，她与男孩休有一段炽热而真挚的爱恋，有一天两个人外出约会，双方情至深处，度过了一个迷离的夜晚，然而之后休却仿佛换了一个面孔，察觉不对劲的洁依向休询问事情的因果，原来一直有一个看不见的人跟着休，这个人能够变换成任意一个人的容貌，他的目标就是杀死休，想要摆脱这个人的追杀，就只有通过性把它传播给别人，之后洁依就一直处于恐慌当中，她的妹妹凯莉以及好友保罗都为她担忧却毫无办法，那看不见的黑暗潜行者依然随时有可能出现，对洁依做出一击毙命的追杀，而洁依的恐惧也将一直挥之不去。

"It's Behind" is a thriller about an unknown disaster. Rough treatment, it turns out there is something else hidden in it

Jieyi is fond of youthful and beautiful hazy love, she has a passionate and sincere love with the boy Hugh, and one day they go out on a date , the two sides fell in love deeply, and spent a blurred night, but Xio seemed to change his face afterwards. Jieyi, who sensed something was wrong, asked Xio about the cause and effect of the incident. It turned out that there was an invisible person following Xio all the time. Being able to transform into anyone's appearance, his goal is to kill Xio. If he wants to get rid of this person's pursuit, he can only spread it to others through sex. After that, Jieyi has been in panic. Her sister Kelly She and her friend Paul are both worried about her, but there is nothing they can do. The invisible dark stalker may still appear at any time, chasing and killing Jieyi with one blow, and Jieyi's fear will never go away.