Episode 1: Sisters Cat and Cathy reel from the news they have a secret brother, Callum whom Cathy just snogged. Cat's mom, Marilyn, is furious to learn she wasn't Colin's only mistress and sets about tracking down his other secret lover, Angela. Meanwhile, Cathy's mom, Tess, decides to have some fun with her late husband's legacy and embarks on an ill-advised luxury spending spree.