The Chapmans (plaintiffs), through a real estate agent, sold a part of a parcel of the land to the Hoffmans (defendants). When the Hoffmans paid for the land and took possession, they understood that they were only buying a part of the parcel. However, when the agent drafted the deed, he mistakenly conveyed the entire lot. When the mistake was discovered, the Hoffmans were asked to deed back the portion of the lot that they had not bargained for. They refused to do so, so the Chapmans brought suit. The trial court ruled in favor of the Chapmans and reformed the deed. The Hoffmans appealed.