Left in webs and reeking of rot, bodies dot the streets and alleys of the Zhentarim Ghetto, and no one does a thing. But leave one body inside Mulmaster’s walls, and everyone loses their minds. Especially the Cloaks and the City Watch. Which is probably why a Zor and Cloak representative has invited you to breakfast.
A four hour adventure for 1st - 4th level characters.