For some inexplicable reason, you're added to a mysterious group chat with 7 others you don't know. While you're figuring out what the group is all about, Dr. Crow – a scary stranger with a plague doctor mask – suddenly appears! At first you take the situation casually, until suddenly shocking symbols randomly appear at your house that make your blood run cold. You receive creepy video calls and mysterious clues. What dark secret connects the group members? Who is behind the scary plague