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Nth Room case

A copycat crime, known as the "Doctor's Room", (박사방; 博士房; baksabang) was operated by a man using the screen name Doctor (박사; Baksa, later identified as Cho Ju-bin), who is accused of blackmailing dozens of women, forcing them to take sexually exploitative videos, with some involving rape.

Place
South Korea, South Korea
Date
2018–2020
Status
SolvedAuthorities consider the case resolved, usually after identifying or convicting the responsible person.
Sources
2 cited sources

Updated 23 Aug 2026

Overview

Case overview

A copycat crime, known as the "Doctor's Room", (박사방; 博士房; baksabang) was operated by a man using the screen name Doctor (박사; Baksa, later identified as Cho Ju-bin), who is accused of blackmailing dozens of women, forcing them to take sexually exploitative videos, with some involving rape. The police, however, did not consider the report credible and ignored it. [1]

The first known people to investigate the Nth room case were two female university students in July 2019, going by the team name of Team Flame. The lead operator Baksa was arrested, but his accomplice and Telegram users who shared the videos for money remain unknown. [2]

The Supreme Court of Korea building, representing the prosecutions arising from the Nth Room case
The Supreme Court of Korea building, representing the prosecutions arising from the Nth Room caseSeoul Institute · CC BY 4.0 · View original ↗
Detailed chronology

Key events

5 sourced milestones

Major events in the case, shown in chronological order.

  1. Student journalists begin documenting the network

    Two university students working as Team Flame began investigating Telegram channels that distributed coerced sexual-abuse material.

    Source: Wikipedia ↗
  2. Police make an early arrest

    Police arrested a channel operator known as Watchman as investigators worked to identify administrators and users.

    Source: Wikipedia ↗
  3. Moon Hyung-wook is detained

    Authorities arrested and charged Moon Hyung-wook, who operated online under the name God God.

    Source: Wikipedia ↗
  4. Cho Joo-bin is sentenced

    A court sentenced Cho Joo-bin to forty years in prison for operating the Doctor's Room channels and related offences.

    Source: Wikipedia ↗
  5. Further sentences are imposed

    Courts imposed lengthy prison sentences on additional principal operators, including Moon Hyung-wook.

    Source: Wikipedia ↗
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