家有一老，激死新抱？轉眼八十歲，時間走得比自己還快，還未適應已下個十年，面對不再熟悉的世界教我如何「啃」下去？一個充滿負能量的阿伯，終日懷緬過去常陶醉，事事睇唔順眼。經過一次意外，他必須搬到大城市和兒子同住，偏偏阿仔娶著個女强人老婆。無論是生活習慣、行為價值，都同老爺背道而馳。同一屋簷下，激到出煙人都癲。日日都是世代之爭，天天都是EQ的終極訓練。隨著二人關係更為密切，老爺和新抱逐漸在對方身上，重新發現和認識自己。經驗始終是是永不過時的履歷，芬蘭脫軌溫情家庭劇，窩心呈獻家有一老，真．如有一寶。

A grumpy old man is forced to live with his business-minded daughter-in-law, can they put up with each other? If you have lived under the same roof with a grumpy old man, you may resonate with this Finnish experience. The Grump is about a stubborn old man who has to move into the city to live with his son and daughter-in law after a heavy fall. Immediately, this stubborn old man and his daughter-in-law drive each other crazy by their different lifestyle, values and ways of thinking. She wants him out of the house, he does not bother to understand her behavior. But after a while, the two starts to realize another side of the other, and begin to warm into each other’s heart in this moving and hilarious comedy.