The secret shopper unwrapped - Kate Harrison

Christmas is coming, and while the bells are ringing, the tills aren't. But Sandie - the rising star of the retail spying world - is busier than ever, rooting out the best and worst in festive customer care through her company.

The former Charlie's Shopping Angels are helping out, too. Glamorous widow Grazia is going undercover under the duvet at boutique hotels, in between dating a succession of toyboys and trying to remember which lie she's told about her age. Meanwhile, not-quite-yummy mummy Emily investigates the child-friendliness of the high street with the help of three-year-old Freddie, when she's not working flat out with her partner to save their fledging village shop from the un-festive credit crunch.

The shoppers are back, but is the happiness they've worked so hard for, about to disappear faster than a Louis Vuitton handbag in the Harrod's sale?