Two years have passed and the once-unbreakable bond between best friends Katie, Trudi, Jessica and Siobhan has been shattered. As the girls gather it's clear their relationship has changed dramatically: there's tension in the room and no happy greetings. What could have happened to bring them to this?

• Kate O'Riordan
• S.J. Clarkson
• Lowri Glain

• Joanna Lumley
• Natasha Little
• Stephen Greif