Each night in Silicon Valley, the Line 22 bus route—the only route that runs 24 hours—transforms into an unofficial shelter for the homeless. In this documentary by Elizabeth Lo, the audience rides along for one night. The tech boom has displaced poor populations and created sky-high living costs, and because Silicon Valley lacks sufficient homeless shelters, people resort to shuttling back and forth between San Jose and Palo Alto just to sleep. Lo's film is a moving and sometimes uncomfortable portrait of what it's like to be homeless in the cradle of the lucrative tech industry—where a good night's rest, for some, is difficult to find.

We want to hear what you think about this article. Submit a letter to the editor or write to letters@theatlantic.com.