In a modest Manhattan walk-up, a group of survivors are on their last legs. As the end seems nigh, a teenage girl is spotted on the avenue, not only alive but repelling the undead like Moses parting the Red Sea. When she comes to their aid questions of who, what and why she's immune to attack arise. Almost like a play, this single location-centric story features a strong cast of archetypal, yet fully fleshed-out, distinct, characters. And the mysterious stranger that arrives as their saviour, only to confound them, even as she complies with their ever-increasing impositions.