智雄（宋仲基 飾）大學畢業后便整日游手好閑。某天他認識了從對面天臺跳過來撿瓶子的怪女人紅實（韓藝瑟 飾）。守財如命的紅實盯上了智雄住所的搬遷費，她暗中找到智雄的房東，把租房合同改到自己名下，令智雄無家可歸。看到對方依舊樂觀的樣子，受到觸動的紅實承諾幫助他在短期內攢到巨款。毫不知情的智雄對紅實的“善心之舉”懷抱感激。他開始學習無條件聽從紅實的命令，但是時常暴露的敗家本性又總會惹惱紅實。　　紅實雖然異常吝嗇，內心深處卻也有著女人的夢想。她把辛苦攢到的錢交給意中人（李相燁 飾）托管，期望有一天能成為配得上對方的好女人。卻不料一日意中人與情人攜款逃跑，令紅實深受打擊。而智雄也終于得知當初無家可歸的內幕，感到被利用的他是否會原諒紅實？

 What begins as a peaceful venture into civilian life for a pair of military vets, quickly devolves into chaos when a nuclear crisis brings danger to their doorstep, igniting an unexpected alliance with a potential enemy, as they struggle to protect their team and overcome the shadows of their past in a lawless new world.

After an eccentric billionaire creates a drug called INOC which stops the aging process effectively eliminating death itself, the future of a world where death no longer exists is seen. Through a seemingly harmless children's toy, the story of the fate of mankind is told while also revealing an elusive truth to its unknowing spectator.

　　貝多芬（岑建勛 飾）和阿秋（吳耀漢 飾）是一對好朋友，也是搞笑鬼馬的便衣搭檔。他們常將警局鬧得不可開交，連上司陳辦（陳欣建 飾）也頭疼不已。不過，自從阿秋和安娜（葉德嫻 飾）結婚之后，貝多芬就變得孤苦伶仃，可憐兮兮。最終貝多芬搬到了阿秋家，和這對小夫妻湊成一個笑料百出的三人世界。　　陳辦不堪其擾，將二人調到素有“鯊魚田”之稱的田警司（田俊 飾）麾下，兩人被好好整了一番，苦不堪言。另一方面，陳辦在執行任務時被多年前的宿敵飛天蠄蟧（林正英 飾）陷害。貝多芬和阿秋深知老上司被冤枉，于是明察暗訪，發誓揪出幕后真兇……