BBC One commissions new four-part series from Jack Thorne
Best Interests tells the story of two parents who must make a life-changing decision that no one could ever want to make.
Andrew and Nicci’s daughter, Marnie, suffers from a life-threatening condition to the extent that medical staff have suggested that it would be in her best interests to be allowed to die to end any suffering.
Andrew and Nicci struggle to contemplate the decision and launch a legal battle to prevent their daughter’s death.