I followed Doris, Kitty and Frank, three people living on the margins of modern Britain.

Doris, 84, fiercely guarded her independence; Kitty, also 84, remained irreverent and determined despite serious illness; Frank, 72, was isolated in Liverpool but still possessed a sharp intelligence and bleak humour. Poverty, loneliness and declining health sit beside wit, stubbornness and an appetite for life.

Staying close enough to listen without turning them into case studies made the film a portrait of old age defined as much by personality and resilience as hardship.