Chatterbox - still talking nonsense

I am a big admirer of Nicola Walker, and in this particular play at the Royal Court she is Miriam, a mother grappling with the disappearance of her teenage son, Oscar.  The play ranges over a seven year period, dipping back and forward, with panic at the early stages, and as the police investigation remains unresolved, the whole family find different ways of living with the absence.  The Unbelievers in this case are the family who have lost faith that Oscar will return and are finding ways to move forward with their lives, whereas Miriam is fierce and obsessive about not giving up.  Things all come to a head when Oscar's dad (Paul Higgins) suggests holding a memorial service. The staging is simple but effective with a soulless waiting room at the back where the cast go when they are not performing, presumably to represent the limbo the characters are all experiencing; meanwhile the main action takes place in the living room towards the front of the stage.  I think th...