People ask me why I’ve set the next installment of the “Murder Becomes” series in Macau. There are several reasons.

First, Macau (and its neighbor, Hong Kong) are exotic locales that have always fascinated me.

I had the good fortune of traveling to Hong Kong on business several times during the 1980s and visiting Macau twice. They are both places that offer mystery and surprises around just about every corner.

Second, both Macau and Hong Kong abound with amazing architecture, which of course is...