Your friend went missing behind a door that shouldn't exist. Tonight he calls back. Keep the TV on.
Your game code arrives by email once payment clears. It keeps until the night you use it, and one code is one full play.
Your code opens the game on our online platform. The story runs on your TV or a second screen, and one phone in the room is the controller. Mid-show, the phone rings. It's him. Everyone on the couch sees the same thing; the person holding the phone knows more. No app. Our tested setup: a laptop plugged into the TV over HDMI, with one phone as the controller.