影片讲述小嗝嗝（梅森·泰晤士 Mason Thames 饰）偶然间遭遇传说中的夜煞没牙仔，并由此与之建立深厚友谊，进而打破两大族群间的隔阂，携手寻求和平的故事。

Divorce lawyer Fiona Sharpe receives a message from her estranged father, embarking on a journey to Ireland. She uncovers family truths and her father