A gripping, twisty locked-room thriller about a serial killer who throws an exclusive party, one that no one will be able to resist - or be able to survive.

Welcome to the party of the year.

You've been invited to an exclusive, luxury event in Norway, hosted by a billionaire. Your moment has finally arrived. But you're not going for the canapes and champagne. You're going for revenge.

Where anything is possible.

You've spent months preparing for this moment. Because you know that beneath the host's polished public persona, he's a vicious killer who has murdered several innocent people, including your sister.

Even murder...

Then a guest dies in mysterious circumstances, and you begin to wonder... is this a trap? Why does it feel like you're being watched? And will you ever escape?