Over one intense day, the devoted head teacher of a last-chance reform school strives to keep his students in line while facing pressures of his own.
Starring Cillian Murphy, Tracey Ullman, Jay Lycurgo, Little Simz, Douggie McMeekin, Youssef Kerkour, Roger Allam, Emily Watson, Archie Fisher, Araloyin Oshunremi