The Witness on Netflix: Where to Watch, the True Rachel Nickell Story, and Fact vs Drama

The Witness arrived on Netflix on June 4, 2026, and within two days it was one of the most-watched titles on the service, reaching number two on the Netflix charts in 47 countries and earning a rare 100 percent critics score on Rotten Tomatoes. The three-part British drama tells the true story of the 1992 murder of Rachel Nickell, told through the eyes of the two people closest to her: her partner Andre Hanscombe and their young son Alex, who was the only witness. This guide covers where to watch it, who is in it, the real case behind it, and how closely the drama follows the facts.

A note before we start. This is a true story about a real murder and a child who survived a profound trauma. We have kept the details factual and avoided sensational framing. If this is heavy subject matter for you, it is worth knowing that going in.

Where to watch The Witness

The Witness streams exclusively on Netflix worldwide. All three episodes were released together on June 4, 2026, so you can watch the full series in one sitting. It is available on every device that runs the Netflix app, included with any standard Netflix subscription.

Netflix released a companion documentary on the same day, The Murder of Rachel Nickell, directed by Lucy Bowden. Where the drama focuses on Andre and Alex, the documentary examines the wider police investigation, including the botched original case. If you finish the drama and want the full factual record, the documentary is the natural follow-up, and it is also on Netflix.

The cast

The three-part drama is built around a small central cast, with Alex and Andre Hanscombe both serving as consultants on the production.

• Jordan Bolger as Andre Hanscombe, Rachel's partner and Alex's father, who raised his son largely away from the public eye in the years after the murder.
• Max Fincham as the teenage Alex Hanscombe.
• Jahsaiah Williams as the younger Alex, who was nearly three years old at the time of the attack.

The series is adapted from Alex Hanscombe's memoir, Letting Go, which he wrote as an adult to tell the story in his own words. Having both Alex and Andre involved as consultants is a large part of why critics have praised the series for its restraint and accuracy.

The true story behind The Witness

Rachel Nickell was 23 years old when she was attacked and killed on Wimbledon Common in southwest London on July 15, 1992. She had been walking with her son Alex, who was almost three, and the family dog. Alex was present during the attack, which is the detail that gives the series its title. He was the witness.

What followed became one of the most criticized investigations in modern British policing. The Metropolitan Police focused on a local man named Colin Stagg and built a case against him using an undercover operation, sometimes described as a honeytrap, in which a female officer attempted to draw a confession out of him over several months. When the case reached court in 1994, the judge threw it out, ruling that the undercover operation amounted to entrapment. Stagg was acquitted and spent years under public suspicion before being formally cleared and compensated.

The real killer was Robert Napper, a man with a history of serious violent offending. Years later, advances in forensic evidence linked Napper to the crime. In 2008 he admitted the manslaughter of Rachel Nickell on the grounds of diminished responsibility and was sent to Broadmoor high-security hospital. The long gap between the murder and the conviction, and the wrongful pursuit of Stagg, are central to why the case still resonates in the UK more than 30 years later.

Fact versus drama: what the series gets right

Because Alex and Andre Hanscombe were directly involved, The Witness sticks closely to the emotional truth of their experience rather than dramatizing the crime for shock value. The series is less a police procedural than a portrait of a father and son rebuilding a life. Reviewers have noted that it largely avoids depicting the violence itself, keeping the focus on aftermath and survival.

Where any dramatization takes small liberties, it tends to be in the compression of timelines and the staging of private moments that only the family could know. The broad facts, the date and place of the murder, the failed case against Colin Stagg, and the eventual conviction of Robert Napper, are all matters of public record and are presented accurately. For the documentary-level detail on the investigation, the companion film is the more complete source.

Where Andre and Alex are now

Andre Hanscombe took Alex abroad in the years after the murder to give him a private upbringing away from the British press. Alex grew up to write Letting Go, the memoir that forms the basis of the series, and has spoken publicly as an adult about processing the loss of his mother. Their decision to participate in both the drama and the surrounding coverage is what made this faithful retelling possible.

Frequently asked questions

Where can I watch The Witness?

The Witness streams on Netflix worldwide. All three episodes were released on June 4, 2026. A companion documentary, The Murder of Rachel Nickell, is also on Netflix.

Is The Witness based on a true story?

Yes. It is based on the real 1992 murder of Rachel Nickell on Wimbledon Common and the lives of her partner Andre Hanscombe and son Alex afterward. It is adapted from Alex Hanscombe's memoir Letting Go, and both Alex and Andre consulted on the production.

Who killed Rachel Nickell?

Robert Napper, who in 2008 admitted manslaughter on the grounds of diminished responsibility and was sent to Broadmoor hospital. A local man, Colin Stagg, was wrongly pursued for years and later cleared and compensated.

How many episodes is The Witness?

It is a three-part limited series. All three episodes are available now on Netflix.

Is The Witness hard to watch?

It deals with the murder of a young mother witnessed by her toddler, so the subject matter is heavy. That said, reviewers have praised the series for handling the material with restraint and focusing on the father-son relationship rather than the violence.

What to watch next

• The Murder of Rachel Nickell (2026), the companion documentary on the investigation. Streaming on Netflix.
• Baby Reindeer (2024), another acclaimed British drama drawn from real, deeply personal trauma. Streaming on Netflix.
• Unbelievable (2019), a careful, survivor-centered dramatization of a real criminal case. Streaming on Netflix.
• The Investigation (2021), a Danish series that, like The Witness, deliberately keeps the perpetrator off screen to focus on the people left behind. Available on HBO Max and other platforms by region.

For more streaming guides, browse our blog, or use The Movies Finder to find your next watch.