Dive into the shocking ending of Netflix's No. 1 crime series, "Adolescence." Why did Jamie kill Katie, and what happened to him and his family in Episode 4?

"Adolescence" on Netflix is inspired by the rise of knife attacks in the United Kingdom. But why did Jamie change his plea to guilty at the end?

Netflix's show Adolescence has become a global phenomenon, as it follows a family dealing with the fallout after their young teenage son is accused of murdering a female classmate. The four-part show, in which each episode is filmed in one shot, is a searing, devastating watch. But just how does it all conclude? Find out here…