Four years ago, five kids started a game. Not all of them survived. Now, at the end of their senior year of high school, the survivors--Owen, Madeline, Emerson, and Dax--have reunited for one strange and terrible reason: they've been summoned by the ghost of Ian, the friend they left for dead. Together they return to the place where their friendship ended with one goal: find Ian and bring him home. So they restart the deadly game they never finished--an innocent card-matching challenge called Meido.