Series 1 Britain, the early ‘80s. At Cachet Windows, the stakes are high and so are the staff. Vincent Swan, Cachet’s head of sales, excels at selling his favourite product – himself. Martin Lavender has a university degree, which in the world of sales is as much use as an aerated condom. Brian Fitzpatrick is an excellent liar with no principles: he makes a pretty good salesman. And then there’s Carol, Britain’s lousiest receptionist. They are getting filthy rich thanks to uPVC double-glazing, a dirt-cheap alternative to timber. To you and me, it’s just plastic. To them, it’s white gold. Series 2 1985. Eight months have passed since Vincent Swan – Essex’s most amoral double-glazing salesman – teamed up with gangster Ronnie and forced his boss to sell Cachet Windows. Now he’s realised that working for a dangerous criminal isn’t much fun. But business is booming, until a new rival salesman appears, stealing most of Cachet’s business. But to their surprise, the team discover this salesman is actually a saleswoman. Meet Jo Field. She’s ruthless in her pursuit of success. And there’s one prize she values above all – Vincent Swan himself.