在这部你信天使吗？喜剧/爱情片中,简·弗洛曼当上了银行的看门人，并爱上了银行女职员玛格丽塔。玛格丽塔的父亲让泽将军有收集各式武器的癖好，她的未婚夫罗尔夫是拥有许多远洋轮船的船主。但为人自私冷漠。简努力接近玛格丽塔，井和她起去航海。从电话中，简巧妙地掌握了银行董事瑞德对股票交易的意向，把母亲遗留给他的财产都买股票。这种股票后来急剧上涨。他还从瑞德手中买下了在别人眼中一钱不值的地皮之后，又巧妙地通过新闻界巧使计谋．使这些地皮的价格上涨...
Jan Froman is a young man with ambitions for the future. He gets a job as an lowly janitor at a bank, but with inherited money he starts to buy and sell real estate which eventually increases in value, competing with bank itself. He falls in love with Margareta, whose father is a navy admiral.
