portnoyz
Watched this all the way through, then came here to rate it only to discover that I had already watched it. Didn't remember one little bit of it. Enough said.
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.