The Mole Song: Final 2021

Comedy

Action

Crime

Runtime

129 mins

Language

Japanese

Directed by

Takashi Miike

Made by

Toho

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The Mole Song: Final Plot Summary

Read the complete plot summary and ending explained for The Mole Song: Final (2021). From turning points to emotional moments, uncover what really happened and why it matters.

Undercover investigator Reiji Kikukawa, Toma Ikuta, known as The Mole, uncovers a bold plan by Shuho Todoroki Koichi Iwaki, head of the Sukiya-kai, to purchase a shipping container filled with 10 tons of amphetamines camouflaged as pasta, in a deal brokered with the Italian Guillotina Family led by Don Razza. The police assign Reiji the task of intercepting the deal and arresting Shuho at the moment of exchange, a mission designed to derail his return to ordinary life and threaten his long-awaited marriage proposal to his girlfriend Junna Wakaki Riisa Naka.

As the transaction unfolds, Shuho’s son Leo arrives to finalize the arrangement, raising the stakes and forcing Reiji to improvise under pressure. He discovers that Shuho is safely aboard the Costa Firenze, a ship flying an Italian flag that prevents a straightforward search by Japanese authorities. Undeterred, Reiji makes his way aboard, while Junna is nearby on a singles’ cruise, trying to put thoughts of their relationship behind her for a while.

Masaya Hiura, “Crazy Papillon” Shin’ichi Tsutsumi, wages a personal vendetta against the drug-connected yakuza and attempts to shoot Shuho. Yet Reiji intervenes, admitting his long-running role as a mole within their circle to ensure Shuho remains alive long enough for a lawful arrest. The tension between loyalty and duty comes to a head as Shuho is finally restrained, and Masaya’s crusade against the drug trade continues to push forward in the shadows.

Back on dry land, Reiji returns to the police force, while Junna’s career takes a surprising turn, culminating in a promotion that elevates her to a supervisory role in Reiji’s life. The story threads together undercover deception, high-stakes law enforcement, and the shifting dynamics of a couple navigating a dangerous underground world, leaving the door open for new questions about trust, loyalty, and what it truly means to come home.

The Mole Song: Final Timeline

Follow the complete movie timeline of The Mole Song: Final (2021) with every major event in chronological order. Great for understanding complex plots and story progression.

Undercover assignment activated

Reiji Kikukawa, known as The Mole, discovers that Shuho Todoroki plans to buy 10 tons of amphetamines disguised as pasta from the Italian Guillotina Family led by Don Razza. He is ordered by the police to monitor the deal and arrest Shuho at the moment of transfer. This mission will delay Reiji's return to normal life and his marriage proposal to Junna.

Before the deal Police HQ, Tokyo

The mission tightens Reiji's personal timeline

The police assign Reiji to intercept the handoff, forcing him to sacrifice his personal timeline for the operation. The assignment promises a high-stakes capture that could define his career. He accepts, knowing his future with Junna hinges on the outcome.

Pre-deal Police HQ, Tokyo

Leo arrives to close the deal on the ship

During the handoff, Shuho's son Leo arrives to perform the deal in place of his father. The target remains a container of 10 tons of amphetamines disguised as pasta, ready to move across the sea on the Costa Firenze.

During the deal Costa Firenze

Shuho is aboard Costa Firenze

Reiji realizes Shuho is aboard the Costa Firenze, a vessel sailing under an Italian flag that cannot be searched by Japanese police. This complicates the operation, forcing a plan to board and arrest him at sea.

During the deal Costa Firenze

Reiji boards the ship; Junna on a parallel cruise

Reiji makes his way onto the Costa Firenze to close the net, while Junna is on a separate singles' cruise to forget about him. The parallel journeys heighten the tension as the pursuit moves from dock to deck.

During the deal Costa Firenze

Masaya's assassination attempt on Shuho

Masaya Hiura, also known as Crazy Papillon, attempts to shoot Shuho Todoroki to wipe out rivals in the drug trade. Reiji's priority is to keep Shuho alive so he can be arrested, leading him to intervene when Masaya draws his weapon.

During the deal Costa Firenze

The mole's confession halts the attacker

To stop Masaya, Reiji reveals that he has been Shuho's mole and ally for their entire friendship. The revelation destabilizes Masaya and buys time for the arrest operation. The mood shifts from pursuit to a tense confession on the ship.

During the confrontation Costa Firenze

Shuho Todoroki is arrested

Shuho Todoroki is arrested alive as law enforcement closes in aboard the Costa Firenze. The planned shipment is thwarted as officers secure the suspect and seize evidence.

End of the deal Costa Firenze

Masaya continues his anti-drug crusade

Masaya continues his crusade against drug-dealing yakuza members, pursuing the war on the drug trade even after Shuho's arrest. His vigilantism clashes with formal law enforcement and hints at ongoing conflicts within the underworld.

Post-arrest Urban Japan

Reiji returns to the police force

Reiji returns to the police force, resuming his official duties after the high-stakes operation. The mission ends with him back in the system, though the experience lingers as a personal turning point.

Post-arrest Police HQ

Junna's promotion reshapes their dynamic

Junna is promoted and becomes Reiji's superior, reshaping their professional dynamic. They navigate the new power structure while continuing to coordinate their roles within the police.

Post-promotion Police HQ

Aftermath: the network's disruption

The 10-ton amphetamine shipment is halted at sea, and Shuho's network is disrupted by the arrest. While Masaya's crusade persists, the immediate drug pipeline is broken and Reiji's identity as a mole is revealed to alter their future work.

Aftermath Sea / Offshore

The Mole Song: Final Characters

Explore all characters from The Mole Song: Final (2021). Get detailed profiles with their roles, arcs, and key relationships explained.

Reiji Kikukawa (Toma Ikuta)

Undercover investigator known as 'The Mole', Reiji balances a dangerous double life as he infiltrates the yakuza network. He is tasked with catching Shuho Todoroki while risking exposure of his true allegiance. His actions propel the mission and complicate his personal life, including a postponed marriage proposal to Junna.

🕵️ Undercover 🧭 Dual life ❤️ Loyalty

Shuho Todoroki (Koichi Iwaki)

Head of the Sukiya-kai, Shuho is the calculating mastermind behind the illicit drug deal. He represents organized crime’s international reach, planning operations that cross borders and threaten lives. His arrest comes as police close in during the Costa Firenze deal.

💼 Power 🗺️ International reach 🧾 Crime boss

Junna Wakaki (Riisa Naka)

Reiji’s girlfriend who tries to move on from the relationship, even joining a singles cruise to forget him. Her arc intersects with his, culminating in a promotion that places her in a position of authority over Reiji. She embodies ambition and resilience in a restricted sphere.

❤️ Love 👩‍💼 Career woman

Masaya Hiura (Shin'ichi Tsutsumi)

Known as 'Crazy Papillon', Masaya leads a crusade against drug-dealing yakuza. He aims to eliminate key players but must contend with Reiji’s undercover strategy, which stalls his own plans. His actions escalate tension and underscore a vigilant pursuit of justice.

🔥 Vendetta 🪤 Recklessness 🦅 Crusade

The Mole Song: Final Settings

Learn where and when The Mole Song: Final (2021) takes place. Explore the film’s settings, era, and how they shape the narrative.

Location

Costa Firenze, Japan

The action unfolds aboard the Costa Firenze, an Italian-flag cruise ship acting as the stage for a drug deal disguised as pasta. The voyage places the operation in international waters, complicating jurisdiction and search efforts. A parallel scene unfolds on a singles cruise where Junna tries to forget him, highlighting the ship as a floating setting of crime, loyalty, and law enforcement.

⚓️ Ship setting 🌊 International waters 🇮🇹 Italian-flag cruise

The Mole Song: Final Themes

Discover the main themes in The Mole Song: Final (2021). Analyze the deeper meanings, emotional layers, and social commentary behind the film.

🕵️

Deception

Reiji operates as a mole, living a double life as he navigates police duties and a dangerous yakuza world. He is tasked with catching Shuho Todoroki while risking exposure of his true allegiance. His actions propel the mission and complicate his personal life, including a postponed marriage proposal to Junna.

🤝

Duty & Loyalty

The characters balance personal desire with professional obligation, particularly Reiji’s struggle between his relationship with Junna and his undercover work. Junna’s role evolves from lover to superior, illustrating how duty reshapes intimate bonds. The story emphasizes the costs and necessity of loyalty in pursuing justice.

💼

Power & Crime

The Sukiya-kai’s drug network demonstrates how organized crime wields influence across borders, from shipboard deals to international fronts. Reiji’s mission highlights the precarious line between criminal power and law enforcement. The pursuit culminates in the arrest that returns balance to the protagonists and the system.

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The Mole Song: Final Spoiler-Free Summary

Discover the spoiler-free summary of The Mole Song: Final (2021). Get a concise overview without any spoilers.

In a world where the line between lawful duty and street‑wise hustle blurs into a never‑ending game of deception, Reiji Kikukawa—known in the underworld as “The Mole”—has built his reputation on slipping through cracks that most never even notice. With a reputation for daring undercover work, he now faces the most consequential assignment of his career, one that threatens to upend his plans for a quieter life and a looming marriage proposal. The stakes are colossal, demanding that he thwart a massive operation that could shift the balance of power across the criminal landscape.

The mission thrusts him onto a glittering luxury passenger ship, a floating micro‑city of indulgence that floats far above the gritty streets where he feels most at home. Within the ship’s opulent decks and polished corridors, danger disguises itself behind champagne toasts and panoramic views, and a shadowy, formidable adversary looms, promising a clash that will test every trick Reiji has ever mastered. The setting swirls with a kinetic mix of comedy, style, and tension, turning a seemingly carefree cruise into a high‑stakes cat‑and‑mouse dance.

Meanwhile, his personal world collides with his professional one as Junna, his determined girlfriend, pursues her own path aboard the same vessel, seeking a brief escape from the turbulence of their relationship. Their connection adds a layer of emotional urgency, pulling Reiji between the pull of love and the relentless call of duty. The film balances rapid‑fire action with sharp humor, painting a vivid portrait of a man who must navigate a sea of extravagance, rivalry, and personal longing—all while staying true to the Mole’s unorthodox brand of justice.

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