At thirty-nine, Bobby Thomshaft is working sixteen-hour days, six days a week delivering milk on the eastern plains of Colorado while yearning to live the lusty life that has always been out of his reach. When his twenty-twoyear marriage to a newly-transformed yuppie princess turns sour, Bobby's partner and friend, Rudy Tvorsky, takes him out for a night on the town and introduces him to his eclectic group of friends who are into more than just cocktails. After Bobby tastes methamphetamine for the first time, he bids farewell to his former life.

Bobby 's meth use increases and his normally positive nature warps into a delusional mix of Pollyanna optimism and meth-fueled arrogance. As his marriage disintegrates into nothingness, Bobby hooks up with Allegra, a twenty-something divorcee and recent Colorado transplant who loves cocaine and a good time. Meanwhile, Bobby is starting to believe the rosy illusions of what he wishes to be true and creates an elaborate plan of self-deception that keeps him from acknowledging the slew of meth complications piling up around him.

As Rudy attempts to wake Bobby from his illusions, he suddenly discovers that people, just like milk, are not exempt from nearing their expiration dates.