Plot Explained Spoilers guaranteed!
Plot Explained

Browse by genre

The Mole Song: Undercover Agent Reiji (2013) movie poster

Plot Summary

The Mole Song: Undercover Agent Reiji (2013) Plot Summary Explained

Release, runtime and language
2013 · 130 mins · Japanese
Loading streaming availability…
Directed by
Takashi Miike
Starring
Susumu Terajima, Takayuki Yamada, Tetsu Watanabe, Junkichi Orimoto, Ken'ichi Endô, Sarutoki Minagawa

Reiji Kikukawa, despite possessing a strong sense of justice, achieved the lowest score in his police academy class. After becoming a police constable, he's unexpectedly dismissed due to fabricated disciplinary issues. This dismissal is a calculated move to infiltrate the Yakuza as an undercover agent, setting him on a dangerous path within the criminal underworld.

On this page (5)
  1. 1 Where to watch
  2. 2 What happens: full plot
  3. 3 Plot questions answered
  4. 4 Movie threads
  5. 5 Every angle
Loading streaming availability…

Full plot summary · contains spoilers

What Happens in The Mole Song: Undercover Agent Reiji: Full Plot Summary

The whole story of The Mole Song: Undercover Agent Reiji (2013) explained, from the opening scene to the final frame: every key event, every twist and what it all adds up to. Read it as a quick recap before the sequel, to check a scene you missed, or to finally understand what really happened.

Last updated: October 04, 2025 at 08:17

Was this helpful?

Plot questions answered

The Mole Song: Undercover Agent Reiji Plot Explained: Your Questions Answered

The questions people ask most about The Mole Song: Undercover Agent Reiji (2013): what happens in the confusing scenes, why the characters do what they do, the twists, hidden details and what the ending means. Each answer contains spoilers.

Q1

Why was Reiji Kikukawa dismissed from the police force?

Reiji was dismissed due to fabricated disciplinary issues. This was not a genuine termination but a calculated move by his superiors to send him undercover into the Yakuza. The fabricated charges gave him a believable reason to leave law enforcement, allowing him to infiltrate the criminal organization without arousing suspicion.

  • reiji kikukawa
  • dismissal
  • fabricated
  • yakuza
  • undercover
Q2

Why was Reiji chosen for undercover work despite being last in his class?

Despite achieving the lowest score in his police academy class, Reiji possessed a strong sense of justice that made him suitable for the dangerous undercover mission. His poor academic performance actually worked in his favor as cover, as the Yakuza would be less suspicious of a seemingly incompetent officer.

  • reiji kikukawa
  • police academy
  • undercover agent
  • yakuza
Q3

What was Reiji's mission as an undercover agent?

Reiji was tasked with infiltrating the Yakuza as an undercover agent. His dismissal from the police force was staged to provide him with a credible backstory that would allow him to be accepted into the criminal organization.

  • undercover
  • mission
  • yakuza
  • infiltration
Q4

How does Reiji become an undercover agent in the Yakuza?

Reiji's transition from police constable to undercover agent was orchestrated through a deliberate setup. His superiors fabricated disciplinary violations to dismiss him, creating a clean break from his police identity. This allowed him to present himself as a disgraced former officer seeking refuge or employment within the Yakuza ranks.

  • reiji
  • undercover
  • transition
  • yakuza setup

Movie threads

More Movies Like The Mole Song: Undercover Agent Reiji, by Mood & Story

Curated lists built around what makes The Mole Song: Undercover Agent Reiji tick: the same mood, the same kind of story or the same emotional payoff. Each list explains why these movies belong together.

Comic Undercover Agent Movies like The Mole Song: Undercover Agent Reiji

Absurdly funny tales of hapless agents stumbling through dangerous criminal worlds. If you enjoyed the bumbling chaos of The Mole Song, you'll love these movies featuring undercover agents in over their heads. Discover similar comedies where high-stakes infiltration meets hilarious mishaps and absurd underworld encounters.

  • absurd
  • chaotic
  • suspenseful
  • energetic
  • underworld
  • high stakes
  • Tone: light, playful
  • Pacing: fast, energetic
Why these movies?

The story pattern: Stories in this thread follow a clear pattern: an unlikely individual is forced to infiltrate a criminal organization, relying on a mix of sheer luck, accidental brilliance, and unconventional methods to survive. The narrative thrives on escalating ridiculous situations that heighten both the comedy and the suspense.

Why they belong together: These films are grouped by their unique blend of crime thriller structure and overt comedic execution. They share a light tone despite high-intensity premises, fast-paced action sequences mixed with gags, and a focus on the absurdity of surviving a dangerous world through incompetence.

High-Energy Absurdist Crime Movies like The Mole Song: Undercover Agent Reiji

High-octane, ridiculous crime stories where the world itself feels like a cartoon. Fans of the over-the-top, chaotic energy of The Mole Song will find more to love here. Explore movies that share a similar vibe of absurd crime capers, playful action, and a world where the rules are made to be broken for comedic effect.

  • absurd
  • playful
  • energetic
  • over-the-top
  • chaotic
  • stylish
  • Tone: playful, whimsical
  • Pacing: fast, chaotic
Why these movies?

The story pattern: The narrative journey is less about a complex plot and more about a series of escalating, outrageous set pieces. Characters careen from one absurd scenario to the next, with the focus on visual gags, hyperbolic action, and a general sense of playful anarchy superseding a deeply serious storyline.

Why they belong together: These films are united by their commitment to absurdity over realism, a fast and frantic pace, and a light tone that makes even violent or dangerous situations feel like a game. The primary goal is relentless, energetic entertainment rather than emotional depth or moral complexity.

Every angle

The Mole Song: Undercover Agent Reiji (2013) Explained: Plot, Timeline & Characters

Everything about The Mole Song: Undercover Agent Reiji in one place: what happens in the plot summary, the timeline in chronological order, the characters and meaning and a spoiler-free summary. What's After the Movie adds the cast, box office and post-credit scenes.

Coming soon on iOS and Android

The Plot Explained Movie Summary App

Plot summaries, endings explained and timelines on your phone. Catch up on any movie in minutes, save your favorites and never miss a twist again.

Be the first to know when we launch. Your email stays private, always.

Learn more about the app