在这部出入禁止之女：案件记者铁忍布剧情片中,在京都地区小有名气的《南条新报》被实业家矶村宪吉（小林稔侍 饰）收购，更名为《京都时报》重新开张，但是因为经营方针的转变引起许多老社员的不满继而众人纷纷辞职。社会部记者铁忍布（观月亚里沙 饰）继续受聘于此，并担当起指导新人美马健作（宅间孝行 饰）的重任。忍布对待新闻有着一股不肯服输、一追到底的坚强韧劲，为了取得重要情报而不惜闯入被禁止进入的地带。与此同时，曾经在全国性纸媒工作的古林千华子（财前直见 饰）出任铁的领导。她一方面对忍布的行事颇有微词，一方面又被其不多见的媒体人精神所感染。
在铁忍布的全力追查下，被掩盖的事实相继大白天下……
After an ownership change, a local newspaper changes names to the Kyoto Times and its policy also undergoes a change to focus on increasing readership. Kurogane Shinobu is a roving reporter for the Local News Section of the Kyoto Times. In the past, she wrote several in-depth investigative articles which won awards. Although many reporters have left the Kyoto Times because they hated the change in policy, she stayed. A divorced single mother, she loves her son, but is poor at expressing it. She has a difficult personality and when she works on an article, she is tenacious and fearless in interviews. When a story breaks, she will rush to the location regardless of where it is and would make a beeline for the person without a thought for the inconvenience she might cause. Due to this tendency, there are now places that are off-limits to her (she is banned from going in and out).
