The British screenwriter and playwright Jack Thorne has written several TV dramas that he hoped would stir political debate. Until last week, they never quite took off.

Then, his new show, “Adolescence,” appeared on Netflix.

In the days since its March 13 release, the four-part drama about a 13-year-old boy who murders a girl from his school after potentially being exposed to misogynist ideas online has become Netflix’s latest hit. According to the streamer, it was the most watched show on the platform in dozens of countries after it debuted, including the United States.

In Britain, the show has been more than a topic of workplace chatter. It has reignited discussion about whether the government should restrict children’s access to smartphones to stop them from accessing harmful content.

Newspapers here have published dozens of articles about “Adolescence,” which Thorne wrote with the actor Stephen Graham. A Times of London headline called it “The TV Drama That Every Parent Should Watch,” and campaigners for a phone ban in schools have reported a surge in support.

In Britain’s parliament, too, lawmakers have used the show to make political points. Last week Prime Minister Keir Starmer told the House of Commons that he was watching “Adolescence” with his two children, and said that action was needed to address the “fatal consequences” of young men and boys viewing harmful content online.