Cathy is riding high in her brand-new job at a (surprisingly bitchy) top London advertising agency working with best friend Rosa. But when Rosa's pregnancy goes amiss and enemies sabotage her new career, she finds herself leading a chaotic double life of lies and deception, hiding a shameful secret from all, especially husband Declan who appears in the throes of a nervous breakdown. Meanwhile she's agreed to unmask the notorious Crouch End Creeper, a burglar terrorizing their neighbourhood. Little does she know that her meddling, assisted by fellow mothers (the Wednesday Once Weeklies) and the Neighbourhood Watch, will lead their dangerous opponent to murder. And that it's not only the tall elegant transvestite who is placing herself at risk...