I've read most of the Inspector Ikmen series ( set in Turkey) and now two of the Francis Hancock series. Barbara Nadel is fantastic at describing setting and nailing down a place and date.
This book, like the other Francis Hancock mysteries, is set in London during the Blitz of WWII. The carnage and destruction of the bombings are a way of life to the populace. But even in a time like this, greed, passion, and revenge can lead to murders. Most men are in the service, and what remains of the domestic police force is stretched very, very thin. So they can use some help.
Francis is the son of an English father and and Indian mother and a WWI veteran. The bombings bring back terrible memories. Francis carries on his deceased father's mortuary business. He lives with his mother and sister.
I learned as much or more about the Blitz from these books as from history books. The most fascinating thing I learned was about Anderson shelters. If you want to be amazed, look it up!