Hulu's Betrayal: Dirty Secrets exposes an ex-cop's alleged double life

ABC and Hulu have unveiled the first look at the upcoming true-crime docuseries Betrayal: Dirty Secrets. The upcoming installment marks the fourth season of the network's anthology series titled Betrayal, based on the hit true-crime podcast hosted by Andrea Gunning.

Hulu's three-episode Betrayal: Dirty Secrets will uncover the double life of Colorado Springs police officer Joel Kern, who was a devoted husband to Karoline Borega and his children, while leading another life with multiple women on the side.

The docu-series, which will be released on Hulu on August 4, features interviews, personal accounts and investigative reporting to piece together a timeline of alleged misconduct, manipulation and abuse of trust.

More on this in our story.

Hulu's Betrayal: Dirty Secrets trailer exposes cop Joel Kern's double life

Hulu's Betrayal: Dirty Secrets trailer begins with Karoline Borega describing her meet-cute with her future husband & Colorado Springs police officer Joel Kern, who was ''tall, handsome, magnetic'' and everything she had wished for in her partner. Further descriptions call Joel Kern a perfect husband, who was a ''family man, devoted father and a good neighbor,'' until a text changed Borega's life and exposed her husband's secret double life.

The fourth season of Betrayal follows the Colorado Springs Officer, who not only deceived his wife and children but everyone around him with a secretive double life, complete with affairs with multiple women.

The Betrayal: Dirty Secrets trailer reveals Karoline Borega describing the moment she discovered her husband's affairs, after getting a cryptic text. What's shocking is that Kern was involved with multiple women, as Borega revealed in the trailer:

"From two to eight to 15. He couldn't stop."

Who will be featured in Hulu's Betrayal: Dirty Secrets?

Betrayal Season 4 will feature exclusive interviews with Joel Kern's wife, Karoline Borega, and daughter Nicole. The trailer offers a glimpse into the latter's life after she discovered the shocking truth about her father and refuses to believe she is related to him.

Additionally, the docu-series will feature interviews with Joel Kern's colleagues, fellow cops, and multiple sources who will testify about his double life. Some of the sources touch upon Joel Kern's 'severe s*x addiction' and s*xual kinks like domination, revealing that he would often clock into work and have s*x with women in his cop car.

Hulu's Betrayal: Dirty Secrets trailer also offers a glimpse of the video footage of the Colorado Springs Police Department's internal affairs investigation. While the authorities accuse Joel Kern of having s*x in the cop car, he blatantly denies it in their face, before breaking into tears and apologizing, which are later termed as 'crocodile tears' by one of the sources.

The final moments of the trailer feature an emotional moment as Karoline Borega breaks down in tears:

"He looked at me and said, 'If I were in your shoes, I'd run. I spent over half my life with this man; my life is a lie. It is a betrayal that is just another level."

Dirty Secrets is the fourth installment in ABC News Studio and Hulu's hit true-crime anthology series, Betrayal. The docu-series uncovers shocking stories of deceit, financial fraud and double lives.

The previous entries, titled Betrayal: The Perfect Husband (Season 1), Betrayal: A Father's Secret (Season 2) and Betrayal: Secrets & Lies (Season 3), were released in July 2023, July 2024 and September 2025, respectively.

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Tune into the Betrayal: Dirty Secrets premiere on Hulu on August 4.

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