Hobo with a Shotgun (2011)

Hobo Rutger Hauer rides the train into town and finds a city full of fear, crime, violence, and immorality.  The city is run by The Drake and his sons, all vile human beings who terrorize the residents and control all the illegal activities in town.  So powerful are they, that they kill and torture those who cross them in broad daylight in front of witnesses without fear of reprisal.

When the hobo gets caught in the middle of a pawn shop robbery where the robbers threaten to kill a baby, he decides to take matters into his own hands.  He buys a shotgun and decides to clean up the town.  This causes the Drake to put a bounty on his head and the whole town, including the police, try to kill him.  The only one who stands by him is the hooker with a hear of gold that he rescued from Drake's son.

This is violent and depressing and definitely harkens back to the grindhouse pictures of the seventies.  You'll feel dirtier for having watched it.