Virginia and Sarah get a shock when they discover each other's 'dirty' secrets tonight. And, of course, Megan's tangled up in it all. Alison and David are reconciled by a death in the family, but the funeral brings and unwelcome visitor. Sarah exacts a daring and inventive revenge on teacher Daniel.

Will Megan's involvement with Virginia lead to disaster? Can Alison resist Graham? Graham returns and attempts to get back with Alison who resists him despite the suspicions of David and Charlotte, while Tamsin finds Virginia with Meagan.