I Am Your Wall

In a world overrun by the dead, a mother named Marin discovers that her lullaby is the only weapon that works. Her baby, Win, draws the evolved horde toward them like a beacon, yet her voice can freeze the creatures in their tracks. Hunted by a false prophet who sacrifices children, and forced to travel with Roxy, a mercenary who is slowly turning into a monster, Marin must push toward the last city before the monsters close in.