Suburban wife and mother, Julia Flanagan is good to a fault. She always plays by the rules, does what she's told and puts her family first. To be honest, her life's become rather dull - and her sex life is humdrum, to say the least. But all that changes when Julia's best friends dare her to start living dangerously. At first, she only breaks little rules - mixing her recyclables, illegally downloading music - but when Julia meets a handsome professor at work, she finds that having started to live dangerously it's hard to stop...