Con Mum: Everything we know about Netflix's upcoming true crime documentary

Con Mum is a forthcoming British documentary film in the popular true-crime space. This genre has gained momentum and popularity in recent years, with several streamers commissioning several projects in the documentary format.

The one-hour and 28-minute long film revolves around a chef duped by someone posing as his mother. The trailer of the film was released recently and offers a peek into this world where people take advantage of others by posing as someone else.

On Letterboxd, the official synopsis of Con Mum reads:

"A chef’s life is upended when a jet-setting, champagne-sipping, hotel-hopping woman claims to be his long-lost mother. This documentary reveals the untold story."

When is Con Mum releasing?

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Con Mum will be released on Netflix on Tuesday, March 25, 2025. Viewers can watch this film through a subscription to the streamer and can also have subtitles for ease of viewing. Nick Green has directed the film. He has previously helmed documentaries like Captive, Carlos Ghosn: The Last Flight, and Putin: A Russian Spy Story.

Harry Harris is the producer, Nick Holt and Jez Lee are the executive producers, and Forest Films is the production banner behind the project.

What is Con Mum about?

Con Mum is about Graham Hornigold, who is a successful pastry chef in London, United Kingdom, and one of the founders of Longboys Doughnuts. He has also appeared as a judge on cooking reality television shows like Top Chef and Junior Bake Off. In the documentary, Hornigold recalls how he was duped by a woman. He has never known or met his real-life mother.

In 2020, he received an email from a lady named Dionne, claiming to be his biological mom. He was excited to meet his mother. But that woman turned out to be a scamster who ended up duping Hornigold for over £100,000. Before the reveal, Dionne told him that he was taken away from her when he was just two years old. The two bond over drinks at a lavish penthouse in Liverpool. But slowly, Hornigold realizes that she is not his real mother.

Netflix has described the documentary as:

“New True crime story. Millionaire, Manipulator, Mum? Is Senior citizen Dionne looking for her long lost son, or simply trying to pull off the monster of all deceptions."

The documentary features interviews with the chef, along with his family, former partner, and friends, who give a clear picture of the entire ordeal. Some people were scammed by the same person who was featured in Con Mum. The makers have released a two-minute and 21-second-long trailer that introduces us to the main subject. He then unravels his real experience of trying to find his real mother and falling prey to a scamster.

Along with Con Mum, Netflix is also releasing a slate of other documentaries in March, including American Manhunt: Osama Bin Laden, Chaos: The Manson Murders, and Katrina: Come Hell or High Water.