The Investigation Of Lucy Letby: Trailer, certificate and where to watch

Insight into the case that hears from the mother of one of the victims for the first time

Year: 2026

Certificate: 12

Watch now on Netflix

Produced by ITN for Netflix, this one-off documentary provides a comprehensive dig into the case that has divided the nation, and uses never-before-seen footage to shed fresh light on the investigation. This includes materials and testimony from the police case against Letby, the neonatal nurse who, in 2023, was found guilty of murdering seven babies - and attempting to murder seven more. 

The film opens with Letby's arrest and talks to lawyers on both sides of the case but most powerfully of all - and for the first time - hears from the mother of one of the victims, who recalls the heartbreaking experience of going into the hospital to have and then lose her baby. You can really feel the shattering impact of that moment in her words, although you might be better off not looking too closely at the screen as the process that's been used to digitally anonymise her looks unsettlingly artificial up close. 

The film also hears from Dr John Gibbs, a retired consultant paediatrician who noticed the alarming pattern of deaths at the hospital and started to wonder if they were 'missing' something going on at the unit. 

Lucy Letby's parents have complained about the use of footage of their daughter's arrest in the documentary, which comprises the film's opening shot and, as such, is hard to ignore. They worry this could turn their house into a 'tourist attraction' and call the film a 'complete invasion of privacy'.

For more on this case, seek out the Daily Mail podcast The Trial Of Lucy Letby. (94 minutes)