I don't know that I would call this a mystery as the author lets the reader know just about everything that is going on in all the different camps. There are many humorous moments. The mystery is for the main characters to solve; not only for Regan and Jack but for the handyman, Skip, who is suffering from a lot of guilt, in that while he ran for help, Adele Hopkins' body washed away in the storm seas, for the nosy Brewer sisters, who consider the deceased a rude and unfriendly neighbor, and due to their window being smashed move in with the Reilly couple and for Pippy and Ellen, owners of a new store, Pillow Talk, which sold Adele cards and pillows, which seem to indicate that she had a lot of people to whom she needed to apologize for something or other.
The story has some history for the characters listed; especially Ellen who only got involved in the venture of this new store after being led/seduced by Reed Danfoth to give up a good job to work for him in his new restaurant which went bankrupt after only two months. And then there is the other neighbor whose presence remains a secret to this aforementioned group until late in the story - Floyd Wellington, a aging but well know actor with narcissistic and violent tendencies.
Jack and Regan come to rue their decision to spend their first anniversary on Cape Cod as a violent storm brews and they find not only no privacy but also a mystery as to the background, family or acquaintances of the "deceased" woman. They seek help from the couple who own the house Adele was renting, assuming that they would have gotten references and contacts in renting to her. When that turns up a blank page they turn to their parents for help.
This was a quick read but left something to be desired. I just did not feel that I was kept in limbo as most mysteries do to the reader. The only anticipation was at the end in how rescuing a certain lady would turn out.