10 New & Most Shocking True Crime Series On Peacock You Need To Stream Now (2024-2025)

The true crime genre continues its explosive dominance on streaming platforms, and Peacock is quickly becoming the definitive home for the most current, in-depth, and often chilling investigations. As of late 2024 and looking into 2025, the platform is doubling down on high-profile cases and unique perspectives, offering everything from fresh docuseries on active serial killer investigations to highly-anticipated dramatizations of infamous murderers. This list compiles the absolute must-watch, newest, and most shocking true crime series available or premiering soon, ensuring your next binge is packed with the latest developments and deepest dives into criminal psychology and complex legal battles.

The lineup below is a testament to Peacock's commitment to delivering fresh, original content, moving beyond reruns of classic shows. You'll find exclusive access to the homes of alleged killers, deeply personal accounts from victims' families, and groundbreaking fictional series featuring major Hollywood talent. Prepare to dive into the darkest corners of human nature with these top-tier true crime offerings.

The Most Anticipated & New True Crime Series on Peacock (2024-2025)

Peacock has secured some of the most current and future-defining true crime content on the market. These series focus on cases that have recently dominated headlines or are receiving fresh, high-budget dramatic treatments.

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1. The Gilgo Beach Killer: House of Secrets

This three-part Peacock Original docuseries is arguably one of the most timely and explosive true crime releases. It plunges viewers directly into the investigation of Rex Heuermann, the alleged Gilgo Beach serial killer, whose arrest in 2023 shocked Long Island and the nation.

• The Case: The series centers on the decades-long mystery of the Gilgo Beach murders, where the remains of multiple victims, including the "Gilgo Four," were discovered along Ocean Parkway in Suffolk County, New York.
• Exclusive Access: The documentary provides an unprecedented look inside Heuermann's Massapequa Park home, a key piece of evidence in the case.
• Family Disclosures: A major draw is the inclusion of never-before-heard disclosures and interviews from Heuermann's own family, including his wife and children, who detail the unraveling of their lives following the arrest.
• Entities: Rex Heuermann, Gilgo Beach murders, Massapequa Park, Suffolk County, Long Island, Gilgo Four, serial killer investigation.

2. Devil in Disguise: John Wayne Gacy (2025 Drama Series)

While Peacock already hosts a critically acclaimed docuseries on the infamous "Killer Clown," this is a brand-new, eight-episode true crime *drama* miniseries slated for an October 16, 2025, premiere. This shift to a fictionalized account allows for a deeper, more character-driven exploration of one of America's most notorious serial killers.

• The Cast: The series boasts a strong ensemble, with *Severance* star Michael Chernus taking on the challenging role of John Wayne Gacy.
• Key Figures: Other major cast members include Gabriel Luna, Michael Angarano, James Badge Dale, Chris Sullivan, and Marin Ireland, portraying key figures in Gacy's life and the investigation, such as Detective Joe Kozenczak and defense attorney Sam Amirante.
• The Focus: The miniseries will detail the life of Gacy, who was convicted of the sexual assault and murder of 33 young men and boys in the Chicago area between 1972 and 1978.
• Entities: John Wayne Gacy, Michael Chernus, Gabriel Luna, Michael Angarano, James Badge Dale, Killer Clown, true crime drama, Detective Joe Kozenczak, Sam Amirante, Chicago murders.

3. Anatomy of Lies

Not every true crime story involves murder, but some deceptions are so profound they shatter lives just as completely. This three-part docuseries dissects the shocking true story of Elisabeth Finch, a writer for the hit medical drama *Grey's Anatomy*.

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• The Fabrication: Finch wowed Hollywood with an incredible life story, claiming to be a cancer survivor, a victim of sexual assault, and a witness to the Pittsburgh synagogue shooting.
• The Exposure: The series details how these claims began to unravel, exposing a web of falsehoods and fabrications that ultimately led to her downfall and dismissal from the show.
• The Impact: *Anatomy of Lies* explores the psychological reasons behind her compulsive lying and the devastating impact her deception had on colleagues, friends, and the true victims of the tragedies she claimed to have experienced.
• Entities: Elisabeth Finch, Grey's Anatomy, compulsive lying, fabrication, Pittsburgh synagogue shooting, true crime docuseries, deception, Hollywood scandal.

Must-Watch Ongoing and High-Impact True Crime Docuseries

Beyond the newest releases, Peacock has curated a strong library of high-impact docuseries and investigative shows that maintain high topical authority in the true crime space.

4. Dateline: The Last Day

A popular spin-off from the legendary *Dateline NBC*, this series focuses on the critical 24 hours leading up to a victim's death. Each episode meticulously reconstructs the final day of a person's life, using evidence of their activities to ultimately help solve their murder.

• The Format: The show is presented with the signature production quality of *Dateline*, utilizing interviews with investigators, family members, and friends to piece together a timeline.
• The Intention: By focusing on the victim's final moments, the series provides a powerful, humanizing perspective on the crime, highlighting how seemingly mundane activities can become crucial clues.
• Entities: Dateline NBC, Dateline: The Last Day, investigative journalism, victim perspective, murder investigation, critical timeline.

5. The Real Murders of Atlanta

This series takes a regional deep dive into horrifying murder cases that have shaken the city of Atlanta, Georgia. It often explores the boundaries between the city's rapidly gentrifying Southern neighborhoods and the darker criminal elements that persist.

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• The Focus: Each episode is a standalone case, featuring local law enforcement, journalists, and people close to the victims to provide a comprehensive view of the crimes and their impact on the community.
• Topical Authority: By focusing on a specific city, the show builds topical authority around Southern crime and the unique challenges faced by law enforcement in a major metropolitan area.
• Entities: The Real Murders of Atlanta, Atlanta, Georgia, local law enforcement, Southern crime, gentrification, metropolitan murder cases.

6. World's Most Notorious Killers

For those interested in global true crime, this Peacock Original docuseries follows the chilling stories of shocking international murder investigations. It’s a compelling binge that moves beyond U.S. borders.

• Global Scope: The series covers five episodes, each detailing a different infamous international murderer, offering a broader perspective on criminal psychology and global law enforcement efforts.
• Entities: World's Most Notorious Killers, international murder investigations, global true crime, criminal psychology, Peacock Original.

The Classics: Foundational True Crime on Peacock

Peacock also hosts foundational true crime series that remain essential viewing for any dedicated fan, offering historical context and deep dives into cases that changed the legal landscape.

• John Wayne Gacy: Devil in Disguise: The original, definitive six-part docuseries that provides a comprehensive look at Gacy's life, crimes, and the investigation that finally brought him down.
• The Hillside Strangler: Devil in Disguise: A deep dive into the crimes of Kenneth Bianchi and Angelo Buono, who terrorized Los Angeles in the late 1970s.
• Murdered & Missing in Montana: This series focuses on the epidemic of missing and murdered Indigenous women, highlighting the systemic issues and the families' desperate search for justice.
• The Case of: Caylee Anthony: A three-episode documentary that re-examines the infamous 2008 death of 3-year-old Caylee Anthony and the subsequent trial of her mother, Casey Anthony, exploring the filicide case in detail.

Peacock’s true crime library is robust and constantly updated, ensuring viewers have access to both the latest breaking news investigations, like the Rex Heuermann case, and compelling dramatic retellings of historical crimes, such as the 2025 John Wayne Gacy miniseries. Whether your preference is for docuseries, investigative journalism, or true crime dramas, Peacock has established itself as a premier destination for high-quality, shocking, and deeply researched content.