观察者

龍家村村長龍卷峰（許紹雄飾）育有三女一子，分別名叫龍小東（高海寧飾）龍小南（陳靜飾）龍小茜（郭佩文飾）和龍小北（文佐匡飾） 　　大家姐小東是連續五年晉身最佳業績的百萬元桌級經理。外表事業女王的小東卻是一個「天生麻將狂」，更偏偏戀上科學家男友馬壯（馬國明飾）馬壯對小東情深一往，只是他一世人最憎人打麻雀，為了不讓愛郎失望，小東竭力隱瞞自己是麻雀狂的真相 　　二妹小南攻讀戲劇，畢業後當不了演員，卻在片場擔任「親密指導員」，遇上了躁狂影帝千紅哥（陳家樂飾），二人對戲劇追求南轅北轍，但兩個火星撞地球的人偏偏在相處過程由歡喜冤家變成擦出愛火花。 　　三妹小茜一天竟被小北老闆，胸圍廠太子爺林雨雲（李尚正鉓）落力追求，以為大團圓結局之際誰知真相峰廻路轉，小茜和雨雲相愛背後，其實也暗藏一個驚天秘密。 　　三對男女，情場上各有各精彩，如何收科？

　　Joseph Fulton, a well-regarded fifty-eight-year-old director of romantic comedies, wants to become assistant groundskeeper at a local cemetery. He wants to work outdoors and be close to nature. Meanwhile, he thinks it’s important to have his last will and testament drawn up. But his highly dramatic actress girlfriend thinks he must be dying and that he is just too brave to tell anyone. The rumor spreads and soon everyone he knows—and some he doesn’t—are crowded into his small apartment to say their last farewells.

　　以乳鸽店立身的安德森（曾志伟 饰）赴上海创业，却迷上炒房，将妻子气死也未思悔改，这天安德森在影院偶然听到代言新楼盘“碧水云居”的过气演员潘志强（黄渤 饰）放出的“内部消息”，遂再次筹款预抢购新房。与此同时，新婚的昔日售楼小姐罗茜（姚晨 饰）为碧水云居付出五万订金后，惊系该楼盘周边林立各污染源。潘志强担任楼盘主持嘉宾并为售楼公司鞍前马后，只希望对方能为自己的新片注资，不料却被要求退还订金的罗茜纠缠，潘志强心生一计，令罗茜将房转卖安德森，事成后自食其言拒退订金，罗茜无奈只得曝光楼盘内幕，结果引发连串反应，使潘志强与安德森发现自己陷入了开发商之局，于是各人苦思脱身之法……