Miller's Tale (2007)

When David Ward (a quiet school teacher) learns about the death of his neighbor's wife, he finds himself compelled to do the neighborly thing and offer his condolences. But when Miller Giles (a former cop with a suspect past) asks David out for a drink, the story turns dark as the two journey through the dark fringes of small town life and into the frightening backwoods of the violent drug culture.