Emmanuelle Devos stars in Good Girl a light, kooky romantic comedy in the vein of Bridget Jones' Diary. After Fontaine's long-term partner proposes marriage her life goes into a dramatic tailspin as she contemplates her future, and falls for another man.
Young anaesthetist Fontaine Leglou (Emmanuelle Devos) lives in Paris with her long-time partner Michel (Bruno Todeschini). When Michel proposes marriage to Fontaine she is hesitant to commit and despite her love for him she avoids Michel's repeated proposals. Fontaine's evasive indecision only heightens her already eccentric and irrational behaviour and a chance meeting with an attractive stranger further complicates her chaotic life.