A Christmas visit to Doris in her care home is simultaneously poignant and hilarious.

Doris has Alzheimer's so Ken insists on firing mental maths questions to keep her brain cells in good working order, while Margaret struggles to get her mother simply to recognise her.

Richard Herring's comedy about four generations of a family.

Starring Alison Steadman, Phil Davies and Richard Herring.

Relativity is a witty and loving portrait of family life, with affectionate observation of inter generational misunderstanding, sibling sparring and the ties that bind, that will resonate with anyone who has ever argued with their dad about how to pronounce crisp brand names.

Margaret ...... Alison Steadman
Ken ...... Phil Davis
Jane ...... Fenella Woolgar
Ian ...... Richard Herring
Chloe ...... Emily Berrington
Holly ...... Effie Woods
Doris ...... Marion Bailey

Sound Design: Eloise Whitmore

Producer: Polly Thomas

Executive Producers: Jon Thoday and Richard Allen Turner

An Avalon Television production for BBC Radio 4, first broadcast in September 2017. Show less