Across the globe, five strangers receive a horrifying message from an unknown number.

The person you love most is in danger.

To save them, each must play The Game - a sinister unknown entity that has a single rule: there can only be one winner.

If you lose, your loved one will die.

But what is The Game - and why have they been chosen?

There's only one thing each of them knows for sure: they'll do anything to win…

Welcome to the game. you've just started playing.