I expected nothing more than a funny pamphlet and couldn't have been more wrong.
The game is a full-fledged detective noir game, with really cool and charismatic characters, stunning black-and-white environments, with rare bits of color that pop up very nicely, reminiscing of Sin City. Great fully-voiced dialogues, superb soundtrack, and a detailed, around 8-10 hours long, very immersive story.
Achievement completion is a little tedious but nothing too bad if you're willing to do it.
All in all, this was a cluckin' awesome detective-noir game well above my expectations and I'd recommend it to any fan of the genre.