Posh Plumbers

It's midweek, you're in the bar with your mates and the conversation swings around to that old chestnut: job satisfaction. "Yeah, but the thing is," pipes up one pub philosopher, "what we should all do is jack in our careers and become plumbers.

There's a shortage, and you could earn, like, a hundred grand a year." The group murmurs its agreement and another round magically finds its way to the table.

For many professionals, though, the idea of retraining as plumbers is more than just bar-room banter. In fact, such is the demand among disgruntled pen-pushers for plumbing courses that at Lambeth College there are 60 applicants for every place.

In this fly-on-the-downpipe documentary, cameras follow two wannabe plumbers who are both bored with their office-based, albeit high-flying, careers.

Matthew Brumwell is an investment banker who attends classes at Lambeth twice a week, under the watchful, dreadlocked gaze of head of plumbing Claudette Brown (give this woman her own series - she is superbly straightforward).

Matthew takes to plumbing straight away, and lands a day's work experience at Pimlico Plumbers, one of the capital's biggest firms.

Also on trial with Pimlico and learning which end of a lavatory is which is Jane Green, an ex-PR exec who is not shy of getting her hands dirty, despite her unashamedly girly shoes-and-handbags obsession.

This film - part Trouble At the Top-style, gently voice-overed education programme, part life-changing reality TV - is not afraid to show what hard work plumbing is, yet (thankfully) shies away from the familiar "here comes the next disaster" style of business documentary.

In fact, it's almost enough to make you reach for your pipe-bending spring.