Mary Medina has been through a lot. Born with the ability to raise the dead, she has had many adventures—both as Mary and her alter-ego, Mystere—across the Grimm Universe. But now, Mary is content to leave her life as Mystere behind her. However, when mysterious deaths begin popping up too close to home, Mary must become Mystere once again to stop the horror that is being unleashed on her newfound home!