Zombie Nightmare

Casey is the typical teenage nobody. She gets bullied, her brother is sick and dying, her dad is always working, her mom is always busy taking care of her baby sister. On her 16th birthday her mom takes hures a baby sitter and her dad takes off work. Tim is Casey's bully. He is just the typical badboy who doesn't like showing his feelings. He accidentally lets the zombie virus out in public on Caseys birthday. They end up getting stick together. Can they put aside their differences and survive?