An old secondhand bookseller ,on the banks of the Seine ,on the "Quai Aux Fleurs", has got four gorgeous daughters;several young men hover round them.Unfortunately for Rosine ,she is in love with her sister's fiance and she feels suicidal.A good doctor comes to her rescue.Then begins a story made of small romances ,sometimes verging on tragic ;you can sum up the story like this: a young girl learns how it is painful growing up.