If a show comes along touting its various celebrity appearances, shouldn't those celebrities be dazzling, famous, enticing or, at the very least, have a recognisable name?

Murder In Successville (BBC3) stars a different celebrity each week but have we heard of any of them? Its first episode had Jaimie Laing and this week's famous name was Greg James. I simply do not know who these people are. I had to look them up online but surely, to paraphrase Love Story, celebrity means never having to google?

So, this show appears on BBC3, a channel I associate with loud, juvenile stuff - a channel I never go near now they've lost Family Guy - and the celebrities it features have so far been baby-faced young men. And yet�and yet I adore it. How can this be?

Let me first try and describe to you what this utterly weird stramash of a show actually is. (Rarely venturing near BBC3's schedule I wouldn't have known about this programme had the BBC Previews team not kept shoving it under my nose whenever I logged onto their site). The town of Successville is dark and moody, drenched with neon lights and rain. In the police station, growly-voiced DI Sleet frowns and glares behind his desk, wondering how to get his ex-wife back and throwing sarcastic insults to the rookie cops who're quivering on the carpet. It's all a tremendous parody of noir cinema.

Into this set-up comes a celebrity who plays the part of the new cop in town, and they're paired up with Sleet and asked to solve a murder mystery. The poor celebrity doesn't know what to expect and often stumbles, giggles or just looks startled and embarrassed, especially when, on a stake-out, the surly Sleet reveals he tried to get his wife back by sending her a picture of a duck holding a present. These weird moments, and the surreal setting, remind me strongly of The League of Gentlemen or Toast of London, and if you're a fan of those comedies then you must watch this.

The show is partly improvised, allowing the real actors to capitalise on the celebrity's uncertainty or bewilderment at the strange goings-on. In this episode, the murder mystery involves Reece Witherspoon - as all the residents of Successville are celebrities too, although being played by slightly less famous actors and impressionists - and Greg James is paired with the brilliant, lumbering, surly DI Sleet (the 6 foot, 7 inch Tom Davis) to crack the case.

Their bumbled sleuthing takes them to Mary Berry's strip club, Saggy Bottoms, where old men shuffle around on the glittery platform in their pants, and then onto Justin Bieber's casino and all the while the bewildered and giggling Greg James is supposed to be taking notes and picking up clues so that, in the final scene, he can announce who the murderer is.

If and when BBC3 dwindles away to an online-only channel then the BBC absolutely must salvage this weird, manic, odd, hilarious thing and plant it firmly on BBC2.