"The idea is that just because society or your family have placed you into a little box, you can get yourself out of that. Men put themselves into boxes too. It is universal."
Shirley is played by local woman Liz Carrington who has been acting since she was 17.
"Shirley is a very funny character, she has a really nice point of view. It is very witty and observant and Liz is fantastic.
"It is a phenomenal role, and you are up there on your own for about 90 minutes. It is a bit like being a stand-up comedian doing this play," Mr Rugg said.
"There will be times when the audience thinks 'wow that was quite meaningful', but it will also have a lot of fun."