Woo Woo tells the story of a young girl named Louise and an injured veteran in the summer of 1961. After WWI, Woo Woo can only mutter the words, 'woo woo,' and the neighborhood children play games that mock his condition. Louise asks her older sister Eileen about Woo Woo's past. After Eileen fabricates a story about what happened to Woo Woo, Louise finds herself terrified of the injured veteran. However, when Louise confronts her fears she discovers they are not so different after all.