Something has shifted (like the house), come loose or has bent if it's not along a joint. Sheets of drywall shouldn't break like that. I'd take down the wall and redo it. It's going to break again.

If the damage is larger than a coin-sized hole, the repair may require a patch of drywall. (Brett Hondow/Dreamstime) From scuffs to scrapes to gaping holes, drywall damage happens. It’s an ...