A FBI / IRS / ? Investigation With Will Ferrell

I remember part of a detailed and realistic dream where I was working with a man who looked & acted like the comedian/actor Will Ferrell and another man who was his partner/a fellow agent, they/we seemed to be FBI / IRS / or some type of agents on an investigation of some kind, but I did not know the details; but Mr. Ferrell and his partner knew the details of the investigation, and who we were investigating.

The dream took place during the day in a nice fictional city, time seemed to pass normally in this dream without jumps in time probably & the dream & conversations were more detailed than usual, and so this was a realistic dream; but I can not remember some of the dream, so it is a bit unclear.