Adolescence ’s Stephen Graham has issued a warning to parents about the dangers of the internet. The 51-year-old is the star and co-writer of the new acclaimed Netflix series, which follows the family of 13-year-old schoolboy,

If you’re a parent to a school-age boy, I don’t know whether I should advise you to watch Adolescence (Netflix) immediately, or avoid it at all costs because it will chill your blood. It is a drama so quietly devastating that I won’t forget it for a very long time.