Plot: The final visit is to Springfield House in Instow, Devon, where Lucinda Renshaw who is joined in the competition by friend Diane Passmore, transformed this home in to a B&B eight years ago. On arrival, Nigel soaks up the luxury; Karen and Russ get comfy, and Mark and Jo have the run of the top floor apartment, but things take a turn when Mark and Jo realise they don't have a lock on their door