N has been a day patient at north London's Dorothy Fish day hospital for 13 years - her ambition is never to leave. Then she meets glamourous new patient Poppy Shakespeare, an ad agency receptionist convinced she's not mad.
Naomie Harris
as Poppy
Anna Maxwell Martin
as N
Tessa Peake-Jones
as Rhona
Claire Benedict
as Rosetta
Adrian Scarborough
as Middle Class Michael
Cathy Murphy
as Astrid
Kolade Agboke
as Wesley
Marie Critchley
as Tina
Bruce MacLeod
as Brian the Butcher
Penny Layden
as Sue
Kerry Godliman
as Verna
Josef Altin
as Zubin
