Ever wonder how Arkham Asylum turned into such a cesspool?  The latest trailer gives us some insight.

While the asylum started out as a genuine effort to help the insane, and then later the criminally insane, the founder eventually loses his own marbles.  In the video, he narrates through old recordings, documenting his progress.  Now I know Batman came first, but this trailer inspires memories of BioShock -- the environment, the time period, the founder's mentality.

Oh, and just as a reminder: Batman: Arkham Asylum hits retailers next week!