731: Evil Unbound (2025)
Directed by: Linshan Zhao
Premise: Based on true events. During the Japanese occupation of China during World War II, the staff of Unit 731 conduct inhumane experiments on prisoners of war in an attempt to develop biological weapons.
What Works: The story of 731 is fictionalized, centering on a Chinese prisoner (Jiang Wu) who is given privileges by the Japanese staff in exchange for labor. The conceit is partly practical. This character is able to move around the facility and through him the audience discovers the real nature of the experiments. The premise also creates an interesting dramatic tension as the hero of the story is viewed as a traitor by his countryman while he’s trying to make them realize what’s actually going on. It’s enough to give 731 a dramatic shape so that it isn’t just a barrage of horrors. This is a well-produced film with slick production values. The filmmakers create some unsettling but elegant images especially in the climax and in a sequence imagining the airdropping of infectious diseases onto Japan’s wartime enemies.
What Doesn’t: The slick production values of 731 are not always to the film’s benefit. This historical incident was previously dramatized in 1988’s Man Behind the Sun, which is frequently cited as one of the most disturbing pictures ever made. The strength of that film was its brutality and extremity. Man Behind the Sun’s style was stomach turning but the rawness also had a directness that is obfuscated by 731’s slickness. Better films about real life evil make us confront humanity’s capacity for evil. The Japanese characters of 731 come across cartoonish which pushes the reality further away. The pacing and storytelling of 731 are often clumsy. The movie runs over two hours but it plays as though footage is missing. The transitions between scenes are often abrupt and the continuity of the action is difficult to follow, especially during the prison break sequence. For its US theatrical presentation, 731 includes subtitles and additional on-screen text informing viewers of who these characters are and providing context. The text passes too quickly to read. As a dramatization of historical events, 731 is intended to educate and the film ends with an overextended epilogue explaining what happened in the aftermath. It’s too long. The exposition should have been integrated into the drama. 731 is a Chinese production and it should not be lost that this is a piece of state propaganda. That does not diminish the historical facts of what happened but 731 frames these events around Chinese nationalism and the film was been released to coincide with the anniversary of Japan’s 1931 invasion of China. The imperative to be patriotic contorts the movie. Using these historical atrocities to inspire national pride comes across crass.
Bottom Line: 731: Evil Unbound demonstrates some cinematic skill but it falls flat as a drama. The storytelling is clumsy and the style does a disservice to grappling with the real horrors of history.
Episode: #1066 (September 28, 2025)