Unfortunately, I only discovered it when I awoke at 0300 today and turned on the tube with this movie already in progress so I missed the intro and setup. The "not a sofa" aspect was immediately apparent but it did look somewhat malevolent, at least as much as a possessed recliner can. I'm sure its ability to move and inflict harm was addressed in the story but I missed the first half. Sorry to have missed whatever helped the movie make sense and I hope to have the chance to see it in its entirety.
And, yes, we named our old couch El Sofa del Diablo due to the three deaths and two non-fatal strokes that occurred in our families during the reupholstering process.
