As the Eurovision Barbershop Contest approaches, manly quartet 'Tony and the Guys' fancy their chances, until their tenor, the eponymous Tony, does a runner. He must be replaced and fast...

As luck would have it, an unemployed opera singing diva comes warbling past with time on her hands and a vocal range uncannily similar to the departed tenor. Hugh invites her to join the ranks and the initial dismay of Al and Frank subsides with the realisation that this lady is also called Toni and can in fact sing!

All that stands between the heroes and the Euro Barbershop prize are their evil Swiss rivals, The Tax Havens. Romance, treachery and close-harmony singing all combine as the play romps towards its thrilling conclusion.