The Wire: The Complete Series on Sale
The best show you'll never watch is on sale for $149 (regularly $249) at Amazon.ca Disclosure: Click that link and buy something and Amazon sends me a couple nickels. It's got it's fair share of violence, swearing, etc. so it's definitely not for everyone.
For a taste check out Season 01 opening scene and title and 'McNuggets'. Warning: Salty language ahead.
From a reviewer on Amazon:
THE WIRE has been called Dickensian, and there is truth to the comparison. This is a great American novel, highlighting the sad state of the inner city and the scarred souls who inhabit it.