High school teenagers accidentally unleash an ancient Irish entity on their hometown and must stop it before midnight on Halloween.。《宴遇永安》讲述了在机缘巧合之下，沈家一家人意外来到永安城偶遇京兆少尹林晏，并展开了一场有关美食、市井民俗和另类爱情“宴”遇之旅的奇趣故事。。