If You Liked Big Mouth, Watch These Top Best Korean Conspiracy Series!

1. “The Insider's Code” (2025) – Legal/Thriller

A rookie prosecutor uncovers classified documents tying judges and politicians to an illegal organ trade ring. As he digs deeper, he's branded a traitor and forced to flee — but he refuses to stay silent. Every episode raises the stakes, blending courtroom drama with nail-biting suspense.

2. “Pale City” (2026) – Political/Mystery

In a futuristic version of Seoul where citizens are ranked by behavior scores, one journalist stumbles upon a digital manipulation scheme that could control the next election. Think Big Mouth meets Black Mirror — terrifying, fast, and way too close to reality.

3. “The White List” (2025) – Action/Conspiracy

A hit list known only as “The White List” is leaked online, and everyone on it starts dying — except one man. A former soldier turned fugitive, he goes underground to find out who created the list and why he’s been marked. Smart, slick, and packed with brutal twists.

4. “Echo Room” (2026) – Crime/Suspense

A radio DJ begins receiving anonymous nightly messages that predict political disasters and violent crimes. When she tries to report it, no one believes her — until the events come true. Slowly, she’s pulled into a network of spies and whistleblowers fighting an invisible war.

5. “Behind the Curtain” (2025) – Political/Drama

A presidential candidate’s daughter discovers classified files that connect her father to a 30-year cover-up. Torn between loyalty and truth, she teams up with a radical activist to uncover the lies behind Korea’s most respected leaders. Heavy, elegant, and gripping from episode one.

6. “Signal Black” (2026) – Tech/Crime

A cybersecurity team is hired to contain a corporate hack — but they find more than ransomware. Hidden in the code are files from a secret government project, long believed buried. What follows is a dangerous race to expose the truth before they’re silenced for good.

7. “Doubt” (2025) – Legal/Conspiracy

A defense lawyer takes on what looks like a simple embezzlement case — until every witness starts disappearing. He begins to suspect a connection to a decades-old corruption case, and soon, he’s being followed, bugged, and threatened. Dark, unpredictable, and absolutely binge-worthy.

8. “Code Omega” (2026) – Medical/Thriller

A strange virus outbreak leads a doctor to question official statements from the government and pharmaceutical companies. As she digs deeper, she uncovers a hidden bio-weapons project. High-stakes drama with strong characters and an intense conspiracy at its core.

9. “Whispers in the Fog” (2025) – Noir/Crime

Set in a foggy port city, a disgraced detective is called back to investigate a string of disappearances. What he uncovers is a decades-old pact between police, politicians, and corporate tycoons to keep one deadly secret buried. Haunting visuals and slow-burning tension.

10. “False Witness” (2026) – Psychological/Conspiracy

After witnessing a murder no one else saw, a university student is gaslit by everyone around her — including police. But she’s not hallucinating. She’s just in the middle of a social experiment no one’s supposed to survive. Twisted and mind-bending, with strong Big Mouth energy.

11. “Grayscale” (2025) – Drama/Suspense

A former news anchor becomes the target of a smear campaign after she uncovers a pay-to-play media operation run by elite chaebols. Forced off the air, she starts her own live stream to expose what really goes on behind TV headlines.

12. “The Architect” (2026) – Urban/Conspiracy Thriller

He designs buildings for the rich and powerful. But one blueprint contains clues to an underground bunker tied to a powerful secret society. The deeper he digs, the more he realizes — he may have helped build more than just towers. He may have built a lie.