At this point, Blumhouse Productions has been behind such horror films as the Paranormal Activity series, Sinister, and Insidious.
Beyond the fact that Peachfuzz was directed by Patrick Brice and stars one half of the Duplass brothers, Mark, very little is known about the actual plot and production of the film. It apparently deals with a Craigslist transaction that assumedly goes badly.
No release date was announced, but the fact that it is apparently already in post-production probably means you will get to see what a Duplass Brothers horror movie might look like relatively soon. Mumble-scare?