Betty Berry, a 65-year-old grandmother, is struggling to come to terms with her new, unexpected career as a famous rumpy-pumpy novelist.

After being banned from her country club, Betty misses her respectable reputation. When she finds her elderly mother-in-law with nipple clamps dangling from her earlobes, the suburban housewife realises she’s a corrupting influence and hangs up her pen.

However, the demands of her greedy family force Betty to sell the film rights to her novel – on one condition: she has no part in the creation of such revolting cinematic filth.

But things don't go to plan and once again Betty finds herself thrown into the centre of an outrageous hanky-panky scandal.