This is a very nice little introductory adventure, and I used it to start my campaign. It is set in the Baltimore in the back of the "Your Story" Dresden RPG book, and features an NPC who is, this being Dresden, in very serious trouble. It contains seven PCs if you want to use them, but can be run nicely with whatever characters you have, including characters the players just created.

The adventure has three scenes to it: the scene of the crime (two dead baristas, one missing person), the search (which parties who have somebody who can use ritual magic may just skip, fair warning), and the confrontation.

It will give the players and GM a feel to how a fairly normal Dresden scenario (if there is such a thing) would work.