Can half a million Austrians be wrong? That is the number of people that have seen Wolfgang Weinberger's lecture-meets-therapy-meets-comedy, A Guide to Sexual Misery. He is now holding court in Leicester Square attempting to liven up London's love lives, yet judging by frequent outbreaks of giggling on the first night you do not need to be Sigmund Freud to work out that Weinberger is a better humourist than sexologist.

Relationships are a well-trodden area for wit. From Woody Allen to umpteen current stand-ups tackling male and female differences, this is familiar terrain. But the benign, ever-smiling expert puts some fresh spin on it, separating the crowd down gender lines so that men and women can contribute frankly without their partners poking them in the ribs. Be warned – there is audience participation, though humming answers en masse preserves anonymity and everyone remains clothed.

Weinberger's hardly profound thesis is that we are all screwed up. Either by our parents or by our own expectations. We aim too high and are disappointed, we aim too low and are disappointed too. After four years partners communicate meaningfully for four minutes a day. Women fuss too much, husbands cannot find their way around their wives’ bodies with a torch, compass and Ordnance Survey map. 

This is the sexual misery that our host alludes to. After the interval he sets out to heal his audience's pain with a brisk question and answer session. The anxieties are predictable and our guide has plenty of cheeky answers. If a clipboard statistic cannot help there is always his trusty flipchart and a rude pie chart. It is a quick and superficial resolution, which gets plenty of easy laughs.

Despite a few intellectual pretentions and footnotes this is a basic affair. It is not a surprise to discover that Weinberger is originally a filmmaker who took over the show from the therapist who devised it. Those 500,000 Austrians cannot be particularly demanding. 

Yet there is something strangely enjoyable about hearing a cuddly man talk about sex for 90 minutes. One can imagine that on Friday and Saturday nights  this show will play to packed houses and get rather riotous. For this guinea pig, however, proceedings reminded me a little too much of my love life. There was a bit of frustration, a lot of expectation and then it was all over very quickly.

Leicester Square Theatre, WC2 until 23 May (0844 847 2475, www.leicestersquaretheatre.com)