The phrase "dramatic turn" refers to a sudden and significant change or twist in a situation or story. It usually involves unexpected events or actions that have a strong impact. Full definition
Have you noticed that pom pom details have taken a very dramatic turn lately? (fabfatale.com)
They like rewarding predominantly comic actors for taking a darker dramatic turn, even if the degree of difficulty isn't notably higher than in their comedy work. (theguardian.com)
As a consequence of what the company called a «dramatic turn in the market in 2016,» many farmers have given up dairy farming. (dairyreporter.com)