大商人吉里·巴滋洛特的船上的货物像是咖啡豆，但是在便衣侦探斯坦·贝克看来却有些异样，贝克在其中的一个麻袋里，发现一种用于加工核武器的放射性物质，他还发现自己的侄女娜塔莎是巴滋洛特的情妇，这就更加大了他

The movie is a throwback to a time when ordinary people enjoyed simple pleasures like going to their club, or taking in the pictures and growing their chrysanthemums in the adjoining greenhouse garden...so very British.　　It is these very ordinary people that some artists have a great sympathy and admiration for in our often self-serving world. Nothing extraordinary about the movie or the couple but almost 60 years on, the acting still makes it a delight to watch.