"Painting by Numbers" is a dark comedy set in a modern day medium security prison. It follows the trials and tribulations of four ill-assorted inmates, ranging from hardened old lag to timid first-time offender, as they attempt, each for their own reasons, to set up and participate in an art class. Their efforts are sometimes thwarted by the system, and in particular by three prison officers.

Contains very strong language and adult themes. Not suitable for under-16s.