Which famous book is BBC Adventure Girl adapted from?

A TV short film released by Phoenix Satellite TV. The heroine is an American named Annabel, with a sister named Virginia and two friends. All four people want to marry an English aristocrat. Friend A was born wild, and her family opened a plantation in South America. She is the first person to marry into a rich family. My husband is a playboy, but this woman doesn't seem to care (she is such a person herself). Finally, her husband got syphilis, and I don't know who infected who ... Friend B appeared less, and seemed to be more calculating. She married a husband who is not very noble but good at climbing, and it was smooth sailing until the end of the play. Virginia married the brother of her friend A's husband. At first glance, this man is much more quiet and cultured than his younger brother, but it was only after he got married that Virginia discovered that he had a mistress much older than him. She went to the old woman and told her to break up with her husband, but the old woman committed suicide. Then her husband seems to fall in love with Virginia ... Annabel first fell in love with a man (only remember his nickname is "Guy"), but it seems that his background is not noble enough or his family is not well-off. In short, she chose a duke who is also pursuing her. Then, this duke who looked normal at first was actually gay ... Finally, Annabel chose to divorce him and leave with the man she loved.