If friends are the new family, do mates know you better than your partner does? Could you trust your loved one's friends to give you the best advice on handling him or her?

Take Adele, 21, and her 23-year-old boyfriend, Matt. They've been together for four years and while she wants them to move in together, he's happy to leave things as they are. Having agreed to switch places for the weekend, how will the needier Adele survive clubbing and paintballing with a bunch of boys, without being able to offload her moans and groans onto her own mates. And will Matt get a word in edgeways when he's immersed in a world of shopping, girlie lunches and exercise classes. But most importantly, will the experiment help them move their relationship forward?