Allison Mayberry is still missing-trapped within the mirror world known only as the In-Between. Detective Charles Davis and his nephew Jericho, an occult researcher with a haunted past, are running out of time. As they search for a way to reach Allison, Jericho uncovers disturbing links between the mirror and a long-forgotten series of ritualistic murders. Inside the mirror, Allison is not alone. She meets others who were lost before her-souls twisted by tragedy, and victims who never received justice. One of them may hold the key to her escape. But something monstrous is watching her every move. As two worlds collide, secrets unravel, and the line between life and death shatters. If Allison is ever going to be free, she must face the truth buried within the mirror-and the darkness waiting behind The Lion's Gate.