Written by BAFTA winning Jack Thorne, this is a story of a family driven apart by having to make choices no parent would ever want to make.
Marnie has a life-threatening condition. The doctors believe it is in her best interests to be allowed to die, but her loving family disagree. And so begins a fight that will take them through every stage of a legal process, as they struggle to contemplate this huge decision.
Who decides? And in whose best interests will it be?
Watch L&C’s superb Jonathan Rhodes in ‘Best Interests’ from Monday 12th June, 9pm on BBC1.