Ernst Stahl-Nachbaur

柏林这些天连续发生了多起小女孩失踪事件，最后发现这些孩子都无一例外惨遭毒手。这个专门以小女孩为目标的凶手令到柏林城内人人惊恐，家长都不敢让自己的孩子外出玩耍；警察们更是在社会压力下全部出动，然而却一无所获；连黑道都感到压力了，因为警察们一天到晚找他们麻烦，大大影响了他们 的生意。于是黑白两道同时展开了抓拿凶手行动。 最终人们还是从一位卖气球的盲人小贩处获得线索，他曾经卖过气球给于凶手一同前来的小女孩，他根据凶手的口哨声认出了此人经常来买气球。聪明的小贩在凶手背后写了个字母“M”，于是警查们开始追寻这个凶手“M”（彼得•洛 Peter Lorre 饰）。

苏珊娜于二战后返回从集中营回到已成废墟的柏林，却发现她的公寓里住了其他人，即汉斯·默滕斯医生。他被战争弄得消极不堪，酗酒成性。苏珊娜叫他离开，但对方不想走，于是他们在苏珊娜的公寓里合住起来，甚至开始对彼此产生好感，直至相爱。这稍稍鼓舞了默滕斯，然后他得知布吕克纳上尉还活着，并且就住在柏林。布吕克纳上尉在二战中是他的头头，他在圣诞节那天曾经下令杀害一百多条无辜性命，包括许多妇女和孩子……

剧中的女店员为招揽生意，在维也纳会议期间给每一位君主抛一束玫瑰花。只是没想到，在俄国沙皇到达维也纳的时候，一段跨越身份差距的故事就这么开始了。可是不管会议期间发生的这一切有多美好，在会议结束后终究还是要回归现实。（豆瓣字幕翻译2.0小组）

At his uncle’s behest, the young Karl-Heinrich, Hereditary Prince of Saxe-Karlsburg, is sent to Heidelberg to study for a year. After a joyless youth in the gloomy, stately Karlsburg Castle, the prince embarks on the most carefree period of his life. He falls hopelessly in love with Käthi, the charming daughter of his landlords. But duty calls: the prince is gravely ill, and Karl-Heinrich must return to assume his duties as heir apparent and future ruler.

Äls, a young woman from Sweden living in Hamburg in the summer months, attracts a newly married explorer, Albrecht Froben, who has just returned to his native city. But although Äls seems to be 'life itself', she suffers from a tropical disease which is slowly killing her. Froben is torn between Äls and his wife Octavia, who he seen as a kind of 'heavenly' counterpart to the earthy and beguiling Äls.

Rupp (Jannings) is a former butcher, made rich in the meat packing industry as a result of the reversal of fortunes brought on by WWI. He is crude, uncouth and uneducated. His son, Fred, is the apple of his father's eye and is an auto enthusiast. The widowed Rupp falls in love with a former aristocrat, Helen, now down on her luck and pawning her last heirloom. He proposes marriage and she accepts in order to save her ailing mother who needs a monetary influx to avoid death. Her former boyfriend, Platen, warns Helen against Rupp's intentions - he and Rupp are enemies, Rupp having caused his being fired for protecting a chorus girl against Rupp's unwanted advances. Meanwhile, Graf, a shyster, arranges purchase of a near bankrupt auto manufacturing firm, Phoenix, to Rupp's great advantage with practically no monetary recognition to Graf, who swears revenge. Rupp comes upon his son begging Helen not to marry his father but to return to Platen.