《天使的恍惚》是一部设定在20世纪60年代，背景是动荡不安的日本社会，安保运动蔓延全国的电影。影片讲述了一个名为四季的组织，成员都有着以年、月、星期、季节为代号。他们决定发动对东京的炸弹袭击，引起了一系列剧烈冲突和伤亡

故事的主人公十月，率领团队潜入美军基地盗取军火。然而，任务快要完成时，他们的行踪被发现，遭遇了激烈的枪战，导致伤亡惨重，十月本人也因此失明。在此后，另一个兄弟组织冬组夺取了他们所得的军火，而他的领导兼情人秋对他的行动大加谴责。在种种压力下，十月和同伴们决定脱离原有组织，独自发动对东京的炸弹袭击。

电影《天使的恍惚》在上映前遇到了新宿炸弹事件，不得不推迟上映。片中插曲《在寂静的最前线》也是在后来的作品《联合赤军实录》中再次出现，既是为了降低成本，也是对帮助电影推进的联合赤军成员远山美枝子的纪念。

"Angel's Trance" is a movie set in the 1960s, in a turbulent Japanese society, where security movements spread across the country. The film tells the story of an organization called Four Seasons, whose members have year, month, week, and season code names. They decided to launch a bomb attack on Tokyo, which caused a series of violent conflicts and casualties

The protagonist of the story, October, led a team to sneak into the US military base to steal arms. However, when the mission was about to be completed, their whereabouts were discovered and they encountered a fierce gun battle, resulting in heavy casualties, and October himself was blinded as a result. Afterwards, another fraternal group, the Winter Group, seized their ammunition, and his leader and lover, Cho, condemned his actions. Under various pressures, October and his companions decided to break away from the original organization and launch a bomb attack on Tokyo alone.

The movie "Angel's Trance" encountered the Shinjuku bomb incident before its release and had to postpone its release. The episode "At the Forefront of Silence" also reappeared in the later work "Records of the United Red Army", not only to reduce costs, but also to commemorate Mieko Toyama, a member of the United Red Army who helped the film advance.