A Hot Afternoon in Massachusetts in Bloomington, MN

An unidentified body shows up on a Cape Cod beach. A colorful WW II veteran operating a landmark diner and offering opinions that are just shy of being politically correct. Suspicious characters from the US and Brazil laundering money. Some 'not so good' guys from Detroit show up to retrieve a large amount of cash from a home in Boston suburb. How does Vermont PI Michael Hanlon, and his undercover pal Louie Ragsdale, get tied into all of this?
This is book # 5 - including one away from the US 'Vacation Mystery' - of the New England Mysteries. See www.nemysteries.com.