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The Siege at Thorn High poster

The Siege at Thorn High

Parents guide · ClearAge age 17+ · Official R 18+

Movie 2025 118 min Action, Crime, Thriller Checked by Dan S · 3 Sep 2026
Official Rating R 18+ ClearAge 17+

What we flagged

View all categories
Violence
Strong
Sex and Nudity
Mild
Frightening
Strong
Language
Strong

Our take

The Siege at Thorn High is an Indonesian school thriller about substitute teacher Edwin searching for his nephew inside a juvenile detention high school. Dialogue includes relentless f-word outbursts, kill threats, pig's blood, beer talk, and gang-rape backstory references. Tension mixes institutional danger with revenge stakes. Older teens and adults only

Uplifting themes

Family loyalty appears, but grim violence overwhelms uplift Edwin persists despite a brutal environment

Story (may spoil tone)

Edwin promised to his sister on her deathbed to find her son she gave up a long time ago. Edwin's quest brought him to become a substitute teacher in Duri High School, Jakarta, a school for juvenile delinquents. There he must face the most violent students to find his nephew. When he eventually finds the boy, a city-wide riot erupts and Edwin is trapped in the school with the cruel kids out for his blood.

What we flagged

View all categories

Violence
Strong
Sex and Nudity
Mild
Frightening
Strong
Language
Strong

Details

Violence Strong Kill threats, pig's blood, and sustained school confrontation violence

Kill threats, pig's blood, and sustained school confrontation violence

Language Strong Relentless f-word and to-hell-with-you shouts during bus and school fig…

Relentless f-word and to-hell-with-you shouts during bus and school fights

Sex / nudity Mild Kiss-my-feet humiliation; sexual content is mostly verbal

Kiss-my-feet humiliation; sexual content is mostly verbal

Drugs / alcohol Mild Beer-only-won't-do dialogue and detention drinking context

Beer-only-won't-do dialogue and detention drinking context

Frightening Strong Institutional dread and siege tension dominate the thriller mood

Institutional dread and siege tension dominate the thriller mood

Sexual violence Strong Expect strong language in dialogue, including Gang-rape backstory and m…

Expect strong language in dialogue, including Gang-rape backstory and my-sister-was-raped testimony

Child peril / abuse Strong Teen students face detention violence and predatory institutional danger

Teen students face detention violence and predatory institutional danger

Bullying / discrimination Moderate Stop-racism shouts and institutional bullying shape the conflict

Stop-racism shouts and institutional bullying shape the conflict

Gore / death / weapons Mild Blood references and you-don't-have-the-guts taunts; gore stays dialogu…

Blood references and you-don't-have-the-guts taunts; gore stays dialogue-heavy

Dangerous behaviour Mild Standoff and siege behavior glamorizes risky confrontation

Standoff and siege behavior glamorizes risky confrontation

Eating disorders / body image Mild We did not see eating in this one

We did not see eating in this one

Mental health Mild Trauma from past abuse and institutional stress weigh on characters

Trauma from past abuse and institutional stress weigh on characters

Gambling Mild We did not see gambling in this one

We did not see gambling in this one

Grief / bereavement Mild Sister's deathbed promise and loss drive Edwin's quest

Sister's deathbed promise and loss drive Edwin's quest

Flashing lights We have not confirmed whether this version contains flashing lights.

We have not confirmed whether this version contains flashing lights.

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Talk after watching

  • Edwin keeps a deathbed promise to find family. What obligations feel nonnegotiable?
  • Juvenile detention settings raise justice questions. Who gets protection here?