In Craigslist Joe, a new documentary produced by Zach Galifianakis, a man attempts to survive for 31 days and nights using nothing but Craigslist.

Filmmaker/star Joe Garner relies on the online classifieds website to find everything – food, shelter, transportation, friends, as seen in the film's trailer above.

Over the course of his adventures, the 29-year-old meets dozens of colorful characters through Craigslist. Some are genuinely friendly and helpful, opening their homes to him; others seem completely crazy.

Garner finds himself in several hilarious and bizarre situations. He witnesses a woman performing an eerie ritual in her kitchen; he hitches a ride with a man who keeps a giant live rooster in his car.

But Garner has an iPhone and a Mac laptop by his side the entire time, along with a toothbrush and clothes, so he's not completely cut off from his normal day-to-day reality. Presumably, having a cameraman following him constantly during his quixotic quest also helped protect him.

Like 2004 film Super Size Me, in which director and star Morgan Spurlock ate nothing but McDonald's fast food for 30 days, Craigslist Joe is an impressive month-long stunt that gets progressively more insane as the days go by.

Craigslist Joe opens Aug. 2 in select theaters nationwide and will also be available for download that day.