Catherine 'Cathy' Walcott and Catherine 'Cat' Walcott only discovered one another existed after their Dad dropped dead. Having finally come to terms with the fact they are sisters, Series 2 kicks off with them reeling from the news they also have a brother, Callum. And that Cathy just snogged him.

As Cathy struggles with the ethics of fancying a sibling, Cat is determined to welcome Callum to the family, while Callum isn't sure what family means any more.

Cat's Mum, Marilyn, is furious to learn she wasn't Colin's only mistress and sets about tracking down his other secret lover Angela, starting a chain of events that nobody expects. Meanwhile Cathy's Mum Tess decides to have some fun with her late husband's legacy and embarks on an ill-advised luxury spending spree.