Sam Rockwell stars in this black comedy as a soft-spoken and empathetic small-town pharmacist who begins a drug-fuelled affair with a customer. Living at home with his oddball son and self-obsessed wife Kara (Michelle Monaghan), Douglas (Rockwell) feels taken advantage of and underappreciated. That all changes when he meets Elizabeth (Olivia Wilde), a beautiful and seductive temptress, who offers him a taste of the good life. The two begin a passionate yet sedated affair thanks to Douglas's access to a wealth of drugs through his job. Can they maintain their high or will they face a significant comedown following their hedonistic liaison?