Art dealer Ruby Lambert is on a mission to lose her baby weight ahead of her sister's Olivia's wedding in 6 months' time. To add fuel the fire, Ruby has also been 'honoured' with the unenviable task of being Head Bridesmaid. So determined not to let Olivia down, she signs up to a swanky new diet & fitness club, The Bluebell Booty Busters.

Uncertain of what to expect Ruby meets Harry Small, a wealthy local businessman who 'joins' Booty Busters, after pressure from his wife, who's worried about his health and growing waistline.

Ruby and Harry soon team up as diet buddies, supporting each other through their dieting crisis's. But something seems amiss at Booty Busters when they both discover that if it looks too good to be true; it probably is....

Will Ruby and Harry ever reach their targets?

And will Ruby do her sister proud and be the Belle of the Ball?