Monster

GREAT
95%
OF 388 SCOUTSRECOMMEND

A brilliant surgeon in Germany is haunted by the consequences of saving a young boy's life, leading him on a quest to understand the boy's dark connection to a series of murders.

📖 SYNOPSIS

A brilliant neurosurgeon living in Germany, Kenzo Tenma has everything lined up perfectly — a climbing career, an engagement to the hospital director's daughter, a life of promise. Then one night he's told to abandon a dying child on the operating table to save a politically important patient instead. He refuses, saves the kid, and his life falls apart. Career tanked, engagement over, reputation gone. And then it gets worse. Because the boy he saved, Johan Liebert, grows up to be one of the most chilling villains you'll ever see in anime. Years later, Tenma realizes what Johan has become and sets out to stop him — essentially trying to undo the one morally right decision he ever made. That's the gut punch at the center of this 74-episode TV series from Madhouse. The pacing is slow and deliberate, set across realistic European cities with a cast that feels genuinely adult. No superpowers, no action set pieces — just a psychological cat-and-mouse thriller that keeps tightening the screws. If you liked Death Note's battle of wits but want something grounded and less theatrical, this is where you go. Fans of Paranoia Agent's unsettling atmosphere will feel right at home too. The show asks hard questions about guilt, morality, and whether evil is born or made, and it never gives you easy answers. It's a seinen drama through and through — patient, dark, and deeply human.

✨ MUST WATCH IF...

You love slow-burn psychological thrillers that prioritize moral dilemmas over action sequences
Madhouse's dark, moody European settings and realistic character designs appeal to you
Dr. Tenma's ethical spiral — choosing conscience over career — is the kind of protagonist arc you dig
You want a complete, self-contained 74-episode story with no sequel-bait or cliffhanger ending

❌ SKIP IF...

74 episodes feels too long — some stretches move deliberately slow with side character detours
You're looking for traditional anime action, powers, or fantastical elements — this is grounded realism
You prefer snappy dialogue and fast plot twists over quiet, tension-building psychological drama

🎬 EPISODE GUIDE

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🎭 CHARACTERS

Johan Liebert

Charismatic and intelligent, Johan Liebert manipulates and corrupts others, causing suffering and destruction.

Portrayed by Uemura Yuuto, Sasaki Nozomu

Kenzou Tenma

A compassionate neurosurgeon driven by guilt, Tenma hunts the boy he saved, now a monstrous killer.

Portrayed by Kiuchi Hidenobu, Ono Miyuki

Anna Liebert

Johan's twin sister, seeking him for revenge after their traumatic past, she lives a peaceful life until their reunion.

Portrayed by Noto Mamiko, Tsukada Mai

Great
Great
95%(8 Reviews)
Monster

Studio

Madhouse

Season

Spring 2004

Start Date

2004-04-07

End Date

2005-09-28

Episodes

74

Type

TV

©浦沢直樹(Studio Nuts)/小学館・VAP・NTV

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