Teams of four pairs compete over a week, to see who has the best taste in interior design by making over each other's homes. With £250 prize money to be claimed, each team must reimagine the room in their replica rooms and completely overhaul it. Nothing is off-limits as the teams restyle the paint, wallpaper, furniture and window features to produce a space that's entirely different from the original, and from each others' designs. When all the pairs have planned out their rooms, the best is finally chosen and installed for real.