This thought-provoking documentary sees Miranda actress Sally Phillips, whose eldest son Ollie has Down’s syndrome, explore the impact of a new NHS screening test for pregnant women that is 99 per cent accurate in detecting this genetic condition.

While some welcome the test, others believe it will have a catastrophic effect on the Down’s syndrome population. Sally meets key players on both sides of this emotionally charged debate and also looks at ethical dilemmas around future scientific developments.

Sally also talks to Corrie star Liam Bairstow (Alex Warner) about being the soap’s first actor with Down’s syndrome.