In the little town of Townsville, a quaint, picturesque place situated in New England, a young woman named Shannon or "Rose" Flanagan goes about her daily life -- university student by day, Wiccan by night. But at the beginning of fall semester, a new church arrives in town, and Rose end up encountering one of its members, a young man named James O'Rourke who has recently emigrated to the States from Ireland. He begins knocking on the door of her heart, and as autumn progresses, a spiritual battleground forms not only over Rose but over the whole of Townsville as the local coven tries to chase the church out of town. As these events goes on, God himself begins to make his presence known to her, giving her pause as to her faith in Wicca and casting doubts on its sincerity as the coven grows increasingly agitated against the new church.