"Someone's Moved the Sun," by Jeffrey Siger, in Sunshine Noir, edited by Annamaria Alfieri and Michael Stanley, White Sun Books, 2016.
Toni plays piano in a gay bar on an island in Greece. To pay the bills he (I assume Toni is a he. As near as I can tell, it is not specified) is also an unlicensed private eye. That means he helps tourists and others get stolen property back.
This time his client is a wealthy man named Kleftis who seems to have lost a backpack. What was in it? Cash, certainly. Black market jewelry, very likely. Perhaps something more sinister than that?
Toni thinks he knows who may have done it but there are dangers in proceeding:
Perhaps I could entice one of their local gang members into making a side deal, but that ran the very real risk of someone ending up buried alongside the backpack. Correction: Make that someone me.
A nice modern variation of the classic P.I. tale.