Su's mother-in-law, Cai Xiang, accidentally misplaced a mysterious "OO," which led to the police's concern. Su's children were all dumbfounded by the situation. Her son, Bingren, irresponsibly ran away, her daughter, Bing'ai, brandished a knife to interrogate, and Bingzhong, lacking filial piety, suggested calling the police. In the end, even Xiaoou and Damei were taken into custody and sent to the police station together! What kind of trouble did Su's mother-in-law get into? What kind of antics will this family come up with?

★ 超夯台劇《我的婆婆怎麼這麼可愛》原班人馬躍上大銀幕，2023賀歲首選電影！
★ 金鐘視后鍾欣凌「最強婆婆」搶攻賀歲檔，卡司、爆笑、感動大銀幕全面大升級！
★《我的婆婆》製作人陳慧玲、《孤味》吳明憲聯合監製，導演鄧安寧、編劇溫怡惠金牌幕後班底再度發威！

蘇家婆婆彩香不小心搞丟神祕「OO」引來警察的關切，蘇家子女們紛紛傻眼，兒子秉仁不負責落跑、女兒秉愛揮刀逼問、秉忠不孝提議報警，最後竟連小鷗、大美都一起上銬送警局！蘇家婆婆究竟捅出什麼婁子？這家人又會搞出什麼名堂？