What connects amateur sleuths turning up at crime scenes, anti-social behaviour in schools and riots? Marianna Spring has spent one year investigating harmful behaviour on TikTok spilling out into the real-world. As well as crunching the numbers, Marianna tracks down TikTok users, victims and former employees to interrogate and expose how extremely high engagement on TikTok around particular topics appears to be creating these 'frenzies'.
The documentary explores how users go to extreme lengths in order to get more engagement in a battle for followers and likes. Marianna investigates the role TikTok's algorithm and format plays in what’s happening and reveals insiders’ concerns about the app. The film seeks to find out if this is the real danger and what impact it is having on society.

Edgar Davidson agrees to talk to investigators but tells a different story. Cathy’s sister Marilyn indicates her interest in solving the case. Tom Nugent casts doubt on Gerry Koob’s story about the night of Cathy’s disappearance. The search for the other man at Cathy’s apartment Pete McKeon may have information about Koob’s relationship.
What Cathy’s roommate Sister Russell knew about the abuse and Cathy’s relationship comes into question. 'Jane Doe' and 'Jane Roe' meet for the first time and talk about the Keough. Abbie investigates Baltimore’s investigation into the abuse reports they received. Marilyn Cesnik Radakovic recalls receiving a mysterious letter from her sister after her death.

After four decades of searching for him, they got a one hundred percent match to the Golden State Killer's DNA. As 72-year-old former police officer Joe DeAngelo's arrest unfolds in real time, chilling facts materialize that illuminate Michelle McNamara's prescience in her book's epilogue.

Psychopaths have long captured the public imagination. Painted as charismatic, violent predators lacking in all empathy, they provide intrigue and horror in equal measure. But what precisely is a psychopath? What is it that drives them to cause harm, even kill? And can they ever be cured? The film also features a series of candid interviews with prison inmates who not only describe their crimes but why they think they committed them.
'What Makes a Psychopath?' explores not only how each individual's crimes were shaped by their own life experiences, but also gives an insight into how these people think and behave. Working with the world's experts in the field, the film sheds light on the biological, psychological and environmental influences that shape a psychopath. And it looks to the future, with ground-breaking research that suggests a lifetime of incarceration is not the only option to manage violent and dangerous psychopaths.

The series follows the tragedy that occurred when terrorists attacked at the annual Boston Marathon on April 15, 2013. They carried out the attack by placing two homemade pressure cooker bombs which detonated near the finish line of the race 14 seconds and 210 yards (190 m) apart. That resulted in three fatalities and hundreds injured, including 17 who lost limbs. With the help of archive footage, interviews with investigators, witnesses, survivors, and occasional reenactments, it offers details about the FBI investigation into what was quickly deemed a domestic terrorist attack.
In the first episode, hours after the blasts, investigators pore over evidence. One photo and a few seconds of footage lead to a breakthrough - and an agonizing choice.

This gripping docuseries delves into the shocking realities of toxic and dangerous past relationships. Featuring a mix of real-life testimonials, bodycam footage, and reenactments, it uncovers the darkest sides of betrayal, violence, and manipulation that go far beyond what most people imagine. Each of the episodes explores a different terrifying story, making every installment feel fresh and unpredictable. From cases of fraud and stalking to heart-wrenching custody battles and even murder, the series keeps you on edge as you witness the devastation left behind by these monstrous ex-partners.
The series taps into the universal fear of not truly knowing those closest to us. The fast-paced episodes bring in real police footage, victim accounts, and expert analysis, building a complete narrative of how these relationships took a horrifying turn. With all four episodes now available in a single film, ‘Worst Ex Ever’ is a must-watch for anyone drawn to true crime, though viewer discretion is advised due to the heavy and potentially triggering themes of abuse, manipulation, and violence.