When All The Girls Have Gone by Jayne Ann Krentz

Charlotte tries to contact her sister about a friend who died.  The cops say it was an overdose, but Charlotte doesn't think so.  However, her sister is in a "no tech" retreat center.  She asks Max, the private investigator on Louise's death, to help her.  What he finds is that her sister is not even on that island.  She checked in and then checked out.  She's hiding...

Berkley and Net Galley allowed me to read this book for review (thank you).  It will published November 29th.

Max is only working with Charlotte because his client has given him permission to do so.  They all want to know how Louise died and who was responsible.  It doesn't take long for them to realize something is going on with this investment club they belong to.  It also appears that a monster from Jocelyn's past has come to life again.

Death is cheap in this story.  No one is quite what they seem.  Money covered up a rape years ago and it's still buying protection.  There's a stone cold killer here.  Greed and a need for power is what is driving the killer.  There's no remorse and no guilty conscience.  Just pleasant memories...

Charlotte and Max are attracted to each other but they both have baggage.  Working together makes them bond and when they are almost killed and only barely survive, that bonds them, too.

There are twists and ties in the story but somehow it all connects together.  The ending is intense and suspenseful.  Jocelyn's nightmare is over but Max still has his nemesis out there.  Maybe in the next book Charlotte and Max can track him down.