Single mum Geri has moved from job to job while struggling to raise daughter Scarlet and lives on under £60 a week, while millionaire businesswoman Debi has money but no work-life balance. For one week they're swapping lives, homes and budgets to find out if money really does buy happiness, with Geri heading to a luxury 18th-century home in Kent, while Debi lives in a ground-floor flat in Shoreham-on-Sea, West Sussex.