Defence barrister Robert Rinder steps out from behind the bench to review two more real-life cases. Today he tells the story of Debbie Davey, who had a successful career, a loving family and a healthy bank balance - which made her the envy of her friend Caryn Bates, who concocted an elaborate scam to Debbie out of thousands of pounds. Plus, when mother-of-two Zoe Dronfield met Jason Smith she thought he was the man of her dreams. But soon his dark side began to surface, and after a year of his violent behaviour she ended the relationship. However, in early 2014 he talked his way back into her home - and inflicted a brutal attack that lasted eight hours.

• Robert Rinder