How would you feel if a complete stranger kept a watchful eye on you, criticised you behind your back to somebody else, and then eventually told you very frankly what they felt about your skills as a parent? Probably a bit peeved.But that's what will be happening in this programme. Two sets of parents and children will move into a house together, with the adults telling presenter Lucy Kennedy their thoughts on what they've witnessed. Then, at the end of the period, they will sit down together and remark on how each duo is bringing up their children. We're expecting lots of fireworks and maybe a few tantrums from those involved.