Killer Relationship With Faith Jenkins season 4 release date, where to watch, and everything we know so far

Killer Relationship With Faith Jenkins season 4 arrives Sunday, November 9 at 7 pm ET/PT on Oxygen True Crime with 10 new hour-long installments scheduled.

Each case follows a relationship that looked stable but hides a violent turn. The show tracks romances, family ties, workplace links and close friendships that collapse into suspicion, control and murder. Investigators, relatives and detectives recount events, supported by host Faith Jenkins, who reminds viewers that emotional bonds can conceal danger.

Season four extends this method to situations where affection mixes with rivalry and to crimes planned by those closest to victims. Episodes highlight threatening text messages, secret jealousy, financial pressure, custody disputes and attempts to control a partner’s future. Several stories move outside romance into workplaces and family circles.

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Latest updates on Killer Relationship With Faith Jenkins season 4

Oxygen released the season four trailer on Oct. 14, presenting investigations where love, loyalty or friendship ends in violence. The trailer confirms that Faith Jenkins remains the on-screen guide, explaining how small disputes become lethal.

Witnesses describe graphic crime scenes, such as a stabbing and a threatening text message. The trailer tags Killer Relationship With Faith Jenkins season 4 as a return to cases where affection turns criminal.

Beyond the narration, the trailer also highlights pairs whose ties shift from affection to threats, including families, colleagues and long-time friends. Speakers describe situations where someone wanted more than a simple work friendship or refused to accept a breakup, prompting detectives to investigate unexpected suspects.

In the footage, host Faith Jenkins says,

“This season of Killer Relationship, love turns to loathing.”

Faith also warns that any attachment can become deadly. Those lines summarise the message ahead of the premiere, giving viewers a warning about controlling behaviour, jealousy and hidden grudges.

Also read: 5 chilling details about Shelly Harmon's crime

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What to expect from season 4

Everything to know about the Oxygen series Killer Relationship With Faith Jenkins season 4 (Image via Unsplash)

Across Killer Relationship With Faith Jenkins season 4, each episode will follow a single investigation from the early stages of affection to the crime and arrest. Detectives will walk through timelines, showing when warning signs appeared and how relatives cooperated with police.

Because several cases involve people who believed they were safe with partners or family, the episodes emphasise documentation, digital trails and eyewitness statements.

The season begins with The Ultimate Betrayal, centring on the 2015 killing of Samantha Dean in Texas, where investigators found that someone close to her organised the attack.

Another hour covers a situation in which a 15-year-old and her boyfriend allegedly plotted the shooting of her father, indicating that age does not reduce risk. Viewers can expect more cases in which suspects appear grief-stricken at first, then are exposed by phone records or interviews.

Patterns shown in earlier years return, yet Killer Relationship With Faith Jenkins season 4 expands them to cover wider motives such as jealousy over pregnancy, anger about parental rules and offenders who staged serious grief.

Also read: 5 chilling details about Gina Spann case as shown in Snapped

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Production details of Killer Relationship With Faith Jenkins season 4

Everything to know about the Oxygen series Killer Relationship With Faith Jenkins season 4 (Image via Unsplash)

The series is produced for Oxygen True Crime with Faith Jenkins as continuing host. Jenkins draws on her experience as a criminal prosecutor in the Manhattan District Attorney’s Office to explain investigative steps.

Each hour uses interviews with law enforcement, victims’ families and friends, plus crime-scene documentation, to reconstruct the events. The format remains consistent with previous seasons, keeping narration, reenactment footage and expert context together for audience clarity throughout.

The upcoming run continues Oxygen’s focus on crimes born from personal ties. Viewers will see investigators test every version of events until responsibility is fixed. The premiere schedule and structure are confirmed, so the remaining details will come from the episodes themselves. Further case names will be revealed at broadcast.

Also read: 5 chilling details about the DC Sniper case ahead of Hunted by my Husband: The Untold Story of the DC Sniper (documentary)

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Stay tuned for more updates and news related to Killer Relationship With Faith Jenkins season 4 and other Oxygen shows.

Edited by Rajan Bhattacharya