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The Investigation of Lucy Letby poster

The Investigation of Lucy Letby

Parents guide · ClearAge age 13+ · Official PG-13

Movie 2026 95 min Documentary, Crime Checked by Dan S · 16 Oct 2026
Official Rating PG-13 ClearAge 13+

No Australia rating available — showing United States

Why our age differs

Official is US PG-13. We say 13+ because nothing is acted out and there is no swearing or sex, though the talk of dying babies is heavy

What we flagged

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Violence
Mild
Frightening
Mild

Our take

The Investigation of Lucy Letby deals with the deaths of babies and the case against the nurse convicted of harming them. Nothing is acted out, but the families' grief and the details of newborn deaths are deeply upsetting. We would keep it for 13 and up and be ready to talk afterwards.

Uplifting themes

Encourages careful thinking about evidence and what it takes to be sure of someone's guilt. It also reminds viewers to treat grieving families with care People who speak up and ask hard questions are taken seriously, though no one is held up as a clear hero. The grieving families are shown with dignity Gives teens a way into talking about medical evidence, statistics, and how a major criminal trial works, and why careful doubt matters in court

Story (may spoil tone)

An engaging and thought-provoking look at Lucy Letby, the former nurse serving life in prison after being convicted of the murders of seven infants and the attempted murders of seven others.

What we flagged

View all categories

Violence
Mild
Frightening
Mild

Details

Violence Mild The film discusses the deaths of babies on a hospital unit and the idea…

The film discusses the deaths of babies on a hospital unit and the idea that someone caused them. Nothing is acted out, but the descriptions are blunt and hard to hear

Frightening Mild A steady, uneasy true-crime mood hangs over the interviews and case det…

A steady, uneasy true-crime mood hangs over the interviews and case details, especially when the talk turns to babies collapsing in hospital. It is sad and tense more than scary

Child peril / abuse Mild Newborns who fell ill, collapsed, or died are central to the case, and…

Newborns who fell ill, collapsed, or died are central to the case, and their treatment is described in some detail. Younger viewers may find the thought of babies in danger upsetting

Grief / bereavement Moderate Families who lost babies or watched them fight for life are part of the…

Families who lost babies or watched them fight for life are part of the story, and their loss is clear and raw. The sadness runs through the whole film

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

  • The film asks viewers to look again at how evidence was used. What kinds of proof do you think a court should trust most?
  • Families who lost babies are part of this story. How should a documentary balance telling a case with respecting people who are grieving?