You were given a simple job, perhaps even the simplest job; protect the briefcase.
Now, what could the briefcase hold to make it deserve it's own personal protector? Who does the briefcase need to be protected from? How is this going to lead into a chat with a raccoon girl? While these are all incredibly valid questions... re-read that job description. You. Protect. The. Briefcase.
This job could be the most straight-forward thing you've ever done, so long as you don't question anything. Not what the case holds, not who might be after it, not even what that shadow stalking behind you is...
...Actually, maybe do question that third thing. You catch a pair of piercing eyes glaring very unsubtly towards... the briefcase, before they meet your own gaze and return to the darkness. Suddenly, right now seems like a very good time to run very far and very fast.
You just bolt for the next few minutes, choosing to flee from your shade-hidden pursuer. In hindsight, while keeping the briefcase on you at all times sounded like a good idea, getting a safe or something would've been so much better. You dodge and weave whatever gets in your way, but that and all of your running rewards you with a dead end.
Luckily, you can't see those eyes anymore, so it seems safe to say that you protected the-
You feel the barrel of a gun press against the back of your head.
"Pleasure to make your acquaintance."