Patent trolls, companies that own patents solely to sue over them rather than to build anything, get their origin story here. The film traces how a decades-old patent system collided with the explosion of software and technology patents to create a business model built entirely on litigation threats. Interviews with lawyers, small business owners, and technology reporters lay out how firms like Intellectual Ventures amass thousands of vague patents, then send demand letters to companies large and small, betting that a settlement will always be cheaper than a courtroom fight. Case after case shows the same pattern: a startup or a local coffee shop gets a letter threatening a lawsuit over something as ordinary as a scanner or a Wi-Fi router, with no intention of ever going to trial. The film treats the patent office's own backlog and examination practices as part of the problem, not just the trolls themselves. It closes on the scale of the drain, with billions of dollars a year rerouted from actual innovation into legal settlements.