A kind-hearted nurse working in psychiatry goes above and beyond to be a ray of light for those under her care, despite the challenges coming her way.

Lee Yeo Reum gets dumped by her boyfriend and, soon after, her mother dies in an accident. She goes through one of her worst moments in her life. Lee Yeo Reum then makes the decision to live a complete different life from before and not do anything. She quits her job and moves to a small village, where everything is strange to her. There, she meets the residents, including An Dae Beom, and gets to know them. An Dae Beom works as a librarian. He hardly talks to people, but, when he does, he talks with a stutter. Somehow he gets comfortable and happy being with Lee Yeo Reum. Throughout this time, Lee Yeo Reum also discovers who she really is.

A high school becomes ground zero for a zombie virus outbreak. Trapped students must fight their way out — or turn into one of the rabid infected.