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Eight small-town cops, one alien, zero chill — 1961 Japan's weirdest precinct.

The Diary of a Police Officer: The Slammer Is Full (1961)

wholesome chaoscosmic small-town energygentle satire

Overview

ComedyDrama

A small provincial town surrounded by mountains and fields in northeastern Japan. Here a group of eight policemen solve a series of unusual cases, ranging from extortion, to drunken fathers, to corruption and even the persecution of a man who claims to be an alien. This entertaining film shows these cops with a human heart with humor.

Flag of JPJPJapanese

Standout Aspects

Direction

Wakasugi balances eight personalities without losing the alien.

Writing

Cases escalate from drunk dads to extraterrestrial persecution naturally.

Acting

Ensemble chemistry makes 66 minutes feel like visiting old friends.

Best for:Solo: Perfect cozy afternoon discovery you pretend you found first.·Rewatch: Cult classic status awaits your validation.·Friends: Weird enough to bond over, warm enough to forgive.
M

Director

Mitsuo Wakasugi

ReleasedMar 27, 1961
Runtime1h 6m
StatusReleased

Vibe

Pacesteady
Intensitylow
Tonelight
Feellight
Nikkatsu Corporation

Top Cast

Tadao Sawamoto

Tadao Sawamoto

Sayuri Yoshinaga

Sayuri Yoshinaga

Jūkichi Uno

Jūkichi Uno

Kinzō Shin

Kinzō Shin

Asao Sano

Asao Sano

Zenpei Saga

Zenpei Saga

Masakane Yonekura

Masakane Yonekura

Shosei Muto

Shosei Muto

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Deep Dive

Trivia, insights & behind the scenes

Cultural

Part of the 'Shochiku Ofuna' flavor films, this represents post-war Japanese cinema's pivot toward gentle humanism over nationalist epics. The alien subplot quietly mocks both Cold War paranoia and local prejudice.

Trivia

Sayuri Yoshinaga was already a teen idol; this early role hinted at the dramatic depth that would make her a six-decade legend. Tadao Sawamoto's casting brought kabuki-trained physicality to the precinct's straight man.

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