New Delhi, April 4 -- One thing that separates the casual film watcher from the more obsessive sort is how quickly they realise they're in a oner. For those whose life is cinema, the absence of cutting jumps out because they're so attuned to where a cut would normally occur, where the camera would stop moving. Even before they register it as a one-take, they feel it in their bones.

Adolescence is a four-episode series about a shocking tragedy involving students at an English high school. A 13-year-old, Katie, is stabbed on a street at night; the prime suspect is Jamie (Owen Cooper), a boy in her class. Before long, he's charged with her murder. The series takes us through the investigation and the aftermath, told through several points o...