50 parts Complete MatureKnock, knock, knock, one, two, three! Kitty come and play with me! . . . It was supposed to be one of those harmless sleepover games girls play, and yet the morning after, one of them was gone. Twenty-three years later, the four who remained have built their complicated lives, but they've not forgotten the missing, and the missing has not forgotten them. When their own children begin experiencing disturbances, four estranged friends must face the secrets they've kept, because anyone who plays dark games should be prepared to accept dark consequences.