Started this one last night. Very interesting change of pace! Totally different from any game I've played. You're a detective in L.A. in the 40's, going around collecting clues from crime scenes, interviewing/interrogating witnesses/suspects, driving around LA, shooting or punching out the occasional bad guy. It's actually quite a lot of fun, and requires some real thinking, as opposed to just running around and shooting shit with big ass guns and collecting ammo, or hacking monsters with big ass swords and collecting treasure.
I'm playing on the PC, but it's also available on ps3/xbox.
Well worth checking out.