The Investigation of Lucy Letby
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The Investigation of Lucy Letby (2026) is a 90-minute true-crime documentary released globally on Netflix on February 4, 2026. Directed by Dominic Sivyer and produced by Carla Wright and Simon Mason, the film delves into the harrowing case of British neonatal nurse Lucy Letby, who was convicted of murdering seven infants and attempting to murder seven others. The documentary aims to offer a comprehensive look at one of Britain's most notorious crimes, presenting perspectives from both the prosecution and those who question the conviction. It features previously unseen police interview footage of Letby, an anonymous interview with the mother of one of the victims, and insights from detectives, hospital consultants, lawyers, and medical experts. The film is intended for a mature audience due to its disturbing subject matter and the sensitive nature of the crimes investigated.
Things to Consider
Violence
The documentary focuses on the murders and attempted murders of infants by neonatal nurse Lucy Letby, making violence a central theme, though not necessarily depicted graphically. The violence is primarily discussed through detailed accounts of how the babies were harmed (e.g., injecting air, poisoning with insulin, overfeeding milk), and the emotional impact on families and investigators. The subject matter is inherently violent due to the nature of the crimes.
The film details Lucy Letby's conviction for murdering seven babies and attempting to murder seven others. Specific methods of violence discussed include injecting infants with air into their bloodstream or stomach, poisoning them with insulin, and overfeeding them milk. For example, Child A died after Letby injected air into his bloodstream, and Child C died after air was inserted into his stomach. The narrative revolves around these acts of fatal harm, even if the acts themselves are not visually shown, the discussion of such violence against vulnerable infants is intense.
Scary & Intense Content
The documentary is inherently very scary and intense due to its subject matter: the serial murder and attempted murder of vulnerable infants by a healthcare professional. It includes real police interview footage of Lucy Letby, discussions of the methods used to harm babies, and heartbreaking testimonies from victims' families. The emotional distress and tragic nature of the events are central and consistently present.
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Additional Context
Best For Ages
Ages 16+ due to the graphic nature of the crimes discussed (infant murders), potentially distressing content involving victim testimonies, and the mature themes of true crime, legal debate, and severe emotional impact. The documentary contains unsettling details of child fatalities and the investigation surrounding them.
Good to Know
The documentary deals with extremely sensitive and disturbing material concerning infant deaths. Parents should be prepared for potentially graphic descriptions of harm to babies and the intense emotional distress of the victims' families and investigators. The film also explores complex legal and medical arguments, including the debate over Letby's guilt, which may be unsettling.
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