Remember how much terror and horror 'I Know What You Did Last Summer' brought? Well, that was years ago, now here's a modern version of that in the form of "Unfriended."

Here's the synopsis:

Six high school friends with a dark secret receive a Skype message from a classmate who committed suicide a year ago after someone uploaded a video of her online

Then this happened:

And then a threat:

Watch the trailer below:

Skype will never be the same.