Missing. The disappearance of Betty Coté, a young French exchange student studying in the United States, quickly became national news. Her last confirmed sighting was on Monday at 9:00 p.m., when she was having dinner with a man on a date. By the next morning, both Betty and her date had vanished without a trace. Days later, something even stranger happens. You wake up to find yourself added to a mysterious group chat alongside everyone known to have crossed paths with Betty in the days leading up to her disappearance. Before anyone can leave, a user calling themselves “MASTER MASKED” activates a lock on the group. No one can leave. No one can delete it. No one knows who is behind it. Then the first message appears: “You have one month to find Betty Coté. Fail… and one of you will disappear next.” Now, you and the others must work together to uncover the truth behind Betty’s disappearance before the deadline runs out… or become the mystery’s next victims.