5个年轻人下载了一个神秘的手机App，在安装上之后，他们受到了恶魔的骚扰...

When a group of teenagers receive an invite to download the latest smartphone app, an intelligent personal assistant, they expect a harmless way to get directions and restaurant recommendations. But the sinister nature of the app soon reveals itself, tormenting the friends by tapping into their darkest fears.

五个年轻人下载了一款神秘手机App，安装之后，他们遭到了恶魔的骚扰。

A software company develops a security app to help women living alone feel more secure. A shadow man, which can be projected on the walls and window of the house for twenty-four hours, makes it seem like there is a young man who can move around the house, doing various activities and talking. Mine is a thirty-five-year-old young woman dependent on her mother.

几年后的世界，APP大厦的天才APP设计师韩晨（王冠逸饰）想要利用偶然发现激活的超级人工智能APP－Rita（秦岚饰）实现自己的梦想：得到女神笑笑（施予斐饰…

女孩杰茜与女友吉姆在毕业晚会后，携弟弟马尔斯找男友洛根一起去一俱乐部狂欢。狂欢中吉姆拿着杰茜的手机突然失踪了，通过手机GPS定位，她们三人找到了变态囚禁狂爱德华家。糟糕的是，吉姆是爱德华的亲妹妹，她们落入了精心设计的圈套中……

'THE APP' is an application that gives to its customers the steps to achieve happiness. One day, Benito a fat and not very bright man, wakes up in his luxurious loft with his girlfriend, a beautiful Nordic model. When he consults the application, THE APP tells him that he must jump off the balcony

女孩杰茜与女友吉姆在毕业晚会后，携弟弟马尔斯找男友洛根一起去一俱乐部狂欢。狂欢中吉姆拿着杰茜的手机突然失踪了，通过手机GPS定位，她们三人找到了变态囚禁狂爱德华家。糟糕的是，吉姆是爱德华的亲妹妹，她们落入了精心设计的圈套中……

毕业晚会结束后，女孩杰茜和女友吉姆带着弟弟马尔斯，去找男友洛根，随后一同前往一家俱乐部尽情狂欢。狂欢过程中，吉姆拿着杰茜的手机突然不见了踪影。她们三人借助手机的GPS定位，找到了变态囚禁狂爱德华的家。然而糟糕的是，吉姆竟是爱德华的亲妹妹，她们就这样落入了对方精心设计的圈套。

A young hacker creates an "antisocial" networking app that matches enemies instead of friends. When her enemies start turning up dead, she must uncover who or what is behind it before it's too late