Plaster Crack Wall Damage
These days are really big plaster cracks and bolts of
these cracks are located in bathrooms. Sometimes the moisture in the
bathrooms can cause wall plaster to swell, forcing it to crack or
buckle. This would be more common in plasterer than it would drywall,
but it could happen in both.
Whenever you run into a drywall plaster cracked that's buckled like this, it wouldn't be a bad idea to examine the other side of the wall, for damage. In other words, make sure that someone didn't kick or punch a hole in the other side to cause the damage on this side.