IF you fancy a virtual trip to the Isle of Innuendo then book your ticket at the Royal Court box office.

Sisters of Mersey is a flight of fancy where such inspirational films as Sister Act and Nuns on the Run collide in Dingle at the convent of St Elmo.

You get the picture.

It's time to suspend belief as Jonathan Harvey's script is directed by Stephen Fletcher.

The two creatives clearly enjoy working together.

Lindzi Germain and Keddy Sutton are the two leading stalwarts who appear on the poster featuring a neon light - reminiscent of our much-loved discos and nightclubs.

The versatile twosome play identical twins allowing for plenty of clerical errors to take in throughout this story of mistaken identity, hidden jewels and a gangster-led heist involving a Liverpool landmark.

All manner of skulduggery is unleashed in two hours and 15 minutes of mayhem.

Lindzi is Petra Pottymouth while Keddy is Finola Foghorn.

So you know where the preposterous plot is heading.

Emma Bispham gives her best Court appearance to date as Mother Mary Monobrow.

Emma has a strong singing voice.

Mr Harvey certainly has his loyal fans at the Royal Court as the hi- energy show A Thong for Europe illustrated last year.

Sisters of Mersey is another one-off lively, local production.

It's brash and (as we old Scousers say) 'in yer face'.

Subtlety doesn't get a look in, like.

Beware . . . there is a lot of swearing and enough bodily mentions to fuse the Smut-o-Meter.

It is set in 1986 taking us up to the present day.

And there's the music - always delivered with gusto.

A veritable back catalogue of 80s hits here from Livin' On A Prayer to Heaven is A Place on Earth.

And to help the daft narrative along there's Come on Eileen and Video Killed the Radio Star.

There's an impressive set from Mark Walters and some inventive choreography.

Audience participation rears its head, too, giving this comedy/ musical a panto-esque feel.

The cast - including new names - frequently break the fourth wall.

Sisters of Mersey is rude, riotous and raucous and will appeal to those audiences who enjoy letting their hair down and who are (forgive me) hell-bent on going with the frantic flow.

Verdict: Carry on Up the Cloisters until August 3.

Tickets from Liverpoolsroyalcourt.com or 0151 709 4321.