电影《彷徨之刃》是一部由片山慎三执导，吉田纪子担任编剧，竹野内丰主演的心理悬疑电影。故事围绕着主人公长峰重树展开，他是一位失去妻子的父亲，一直独自养育着女儿绘摩。

一天夜晚，绘摩打工后未归，后来她的尸体被发现，死前遭受了凌辱。长峰深受打击和悲痛，但在数天后，他接到一个匿名告密电话，告诉他犯人的住处。他前去调查后，发现女儿临死前被凌虐的录像，悲愤之下，他决定寻求正义和报复。

长峰踏上了复仇之路，首先找到其中一名犯人并将其杀害。然后，他化名入住另一名犯人菅野所在的民宿，准备进行下一步的行动。然而，由于缺乏犯罪经验，长峰在行动中留下了大量的证据，很快就被警察锁定位置并展开追捕。

与此同时，媒体报道了这一案件，引起了公众的争议。人们开始思考，正义是否应该指向这两名杀人犯中的哪一个？而菅野为了自保，利用同伴被杀和自己未成年的身份寻求警察的保护，让整个案件更加扑朔迷离。

在这个充满复杂道德抉择的过程中，长峰不得不面对自己内心的迷茫和挣扎。他所采取的报复行动，是否真的代表了正义？在这个充满矛盾和困惑的时刻，长峰遇到了协助父亲经营民宿的木岛和佳子，她也决定站在他的一边，为他提供帮助。

The movie "Wandering Blade" is directed by Shinzo Katayama, written by Noriko Yoshida, and starring Toyo Takenouchi Psychological suspense movie. The story revolves around the protagonist Shigeki Nagamine, a father who lost his wife and has been raising his daughter Ema alone.

One night, Emo did not return after working, and her body was found later , was humiliated before his death. Changfeng was deeply shocked and grieved, but a few days later, he received an anonymous whistleblower call telling him where the prisoner lived. After he went to investigate, he found a video of his daughter being abused before she died. In grief and indignation, he decided to seek justice and revenge.

Changfeng embarked on the road of revenge, first to find one of the prisoners and kill it. Then, he stayed at the homestay where another prisoner, Kanno, was staying under a pseudonym, preparing for the next step. However, due to his lack of criminal experience, Changfeng left a lot of evidence in the operation, and was quickly locked by the police and chased him.

At the same time, the media reported the case, causing public controversy . People began to think, which of the two murderers should justice be directed at? In order to protect himself, Kanno used his companion's murder and his identity as a minor to seek police protection, making the whole case even more confusing.

In this process full of complex moral choices, Changfeng had to face Confusion and struggle within oneself. Did the revenge he took really represent justice? At this moment full of contradictions and confusion, Changfeng met Kijima and Kako who assisted his father in running the homestay, and she also decided to stand by his side and help him.