Gorgeous Antonia is on a dangerous downward spiral caused by an addiction to heroin when she meets Mike, a tough drifter who helps her score more smack. Although they're not attracted to each other initially, Antonia and Mike eventually give in to their growing feelings for each other. But this leads to a dilemma: How does Mike help the woman he now loves kick her addiction?

The story of Peter McGowan, a chain-smoking, impotent, insomniac playwright who lives in Los Angeles. Once very successful, he is now in the tenth year of a decade-long string of production failures. He finds himself bonding with a new neighbor's lonely young daughter who has mild cerebral palsy; and during one of his middle-of-the-night strolls, he encounters his oddball doppelgänger.