Cécile is a vapid, bratty, and over-dramatic young woman. She and her father live a hedonistic life of freedom. One day the father falls for a (what Cécile would consider as) "stiff" woman and plans to marry her and Cécile is afraid the marriage would put an end to their life of fun and debauchery. So she hatches a plan to separate her father and the woman. Meanwhile, I don't care at all.