I read a book around 8 months back in my aunt's home. However, I can't seem to remember the book's name although I remember it was a pretty well-known phrase.
The book seemed to be of the 21st Century and I read it in English. I also can't seem to remember the name of the Author but I am vaguely sure it was a pseudonym. The book was about a man who entered into a relationship with a shady woman and then had to kill people so that he could get enough money and settle out. The man was (I think) an insurance agent. The woman was playing a doublegame with him and was ready to dump him for another man. The plot covers how the man killed people and was then caught at the end by the company's private detective at the very last moment. I can remember that the detective had a name that was also commonly found in other works of the same author.