导演采用平实的艺术手法。影像修复技术为历史研究提供工具，全彩处理让历史更加生动，画面呈现增强真实感。但技术使用保持克制，整体色调追求历史真实。整体场面注重人文意义。色彩运用体现严谨理念，声音设计追求内敛风格。Inwinterof1938,ParisiscrowdedwithrefugeesfromtheNazis,wholiveintheblackshadowsofnight,tryingtoevadedeportation.OnesuchisDr.Ravic,whopracticesmedicineillegallyandstalkshisoldNazienemyHaakewithmurderinmind.Onerainynight,RavicmeetsJoanMadou,akeptwomancastadriftbyherlover'ssuddendeath.AgainstRavic'sbetterjudgement,theybecomeinvolvedinadoomedaffair;matterscometoacrisisonthedaywarisdeclared.