新年前夜，罗马街头人声鼎沸，街头巷尾充满欢乐。在一幢公寓内，各色各样的人等经历着人生最为狂乱的时刻：少妇朱莉娅（莫妮卡·贝鲁奇 Monica Bellucci 饰）正准备新年的晚餐，却意外得知丈夫和她最好的朋友有染，她的心情瞬间跌到谷底；英俊潇洒的牛郎受雇来到某年老色衰的富婆处，然而先是富婆过于激动晕倒，接着一种狂欢的球迷循着牛郎的足迹来到公寓；某公司老板背着家人召妓大玩SM游戏，却遭遇三个入室抢劫的强盗；一个小青年不愿和亲人共进晚餐，他和那个迷迷糊糊还随身携带炸药的瘾君子好友躲在斗室内磕药。

尼尔·阿姆斯特朗登陆月球仅九个月后，美国宇航局便迎来了最大的危机：三名宇航员乘坐的宇宙飞船在前往月球的途中遭遇了灾难性的爆炸。

　　The credits fade onto a blind man tapping his way down the sidewalk,he enters a dingy boarding house and hears a shot fired in one of the upstairs bedrooms. A door opens from audience POV. A man tumbles out of the door and falls, slides and slithers down two flights of stairs and is dead when he hits the bottom. Then follows nearly 100 minutes of flashback and flashbacks-within-flashbacks about a veteran returing from the war, tired and disillusioned, only to find that he girl he loves has lied to him about her relationship with another man, and that man is sadistic, boastful and tauntful.

　　Charlie and Ben pay a visit to a pub, then decide to visit a swanky restaurant. Now intoxicated, they come into conflict with a French dandy and his ladyfriend. The large head waiter violently ejects Ben, and later ejects Charlie also. The pair pay another visit to a pub, then make their way to their hotel. They become interested in a pretty young woman staying in the room across the hall, but when Charlie spies on her through the keyhole a bellboy makes him stop. Charlie is taken aback to realize that the young woman's husband is the head waiter from the restaurant. He promptly checks out and moves to another hotel. Meanwhile, the head waiter and his wife, dissatisfied with the service, also decide to move to another hotel-- and, unfortunately, choose the same one Charlie has chosen, and once more wind up in the room across the hall from him. When the young woman's dog runs into Charlie's room she follows in her pajamas. Her husband returns to find his wife with Charlie in an apparently compromising position.