What if you woke up in a parallel world where everyone you love has vanished from your life? When Elwynn Wilder wakes up in bed with the man she divorced three years ago, she realizes something has gone terribly wrong. The apartment she shared with her husband, Max, is occupied by strangers; Max himself left town years ago, and she is, somehow, no longer carrying their child. She soon discovers she's in a parallel world where everyone she loves has vanished from her life. And her counterpart from this world has stolen her place back home. With the help of two experts in the paranormal, Elwynn braves the treacherous transition between worlds and challenges the mysterious entities called Las Brujas, while playing cat-and-mouse with her murderous ex-husband. But if she's ever to return home to her life with Max and their child, she must first make the greatest of all sacrifices.