Every night, Master (Kaoru Kobayashi) is busy with customers at the restaurant he runs. He has a worried face, looking at the funerary urn which someone left at his restaurant. His customers also talk about the funerary urn.
長日終盡，眾人各自踏上歸途時，繁華新宿的某條小巷裡，食堂老闆的一天才正要開始。從深夜到清晨七時，提供度身烹調的窩心料理，大家都稱這裡作「深夜食堂」。這夜，老闆如常為眾食客預備美食，卻遇上意想不到的客人—久未露面的富豪情婦、吃霸王餐的邋遢宅女以及來自福島地震災區的喪妻失意男，他們帶著缺失的心靈來尋找慰藉，最後到底能否在「深夜食堂」覓得解開心鎖的方法?
