Plot Synopsis

VENGEANCE: KILLER COWORKERS is the third of HLN's VENGEANCE franchise. This one-hour crime docuseries profiles victims who met their killers at work. Each one-hour episode takes viewers through the twists and turns of the investigation, the arrest, and the quest for justice. HLN aired a sneak peek of two epoisodes on January 1, 2020 at 9 and 10pm ET, followed by the official series premiere on Sunday, January 5, 2020 att 9 and 10pm ET. Episodes include:

"Killing Spree" (Sunday, January 5, 2020 at 9pm): A string of murders targeting a pizza chain and its employees leads to a nationwide manhunt for a killer hell-bent on revenge.

"Obsession at the Office" (Sunday, January 5, 2020 at 10pm): When a lovers' spat ends up in the hospital parking lot, a biochemist's obsession with a coworker and her murderous means are exposed.

"Murdered Boss" (Sunday, January 12, 2020 at 9pm): Celebrity real estate broker Linda Stein served New York's elite, but when she's found dead in her apartment, investigators are faced with a slew of powerful potential suspects.

"Deadly Ambition" (Sunday, January 12, 2020 at 10pm): A shooting at the University of Alabama Huntsville leaves three professors dead and the community questioning how they missed a murderer in their midst.

"Poisonous Affair" (Sunday, January 19, 2020 at 9pm): When cancer researcher Dr. George Blumenschein ends up admitted at his own Texas hospital, is a toxic work environment to blame?

"Monster Under the Bed" (Sunday, January 19, 2020 at 10pm): When three hotel workers don't turn up for their shift, a bizarre series of discoveries reveals a twisted workplace love triangle.

"Lies, Cameras & Lingerie" (Sunday, January 26, 2020 at 9pm): When the entrepreneurial spirit turns two best friends into mortal enemies, one woman in Florida goes on the run.

"Bloodshed in the Barn" (Sunday, January 26, 2020 at 10pm): Not long after taking a new job, a beloved horse-trainer is found brutally murdered in a rural stable, and a small seaside town in Northern England must find the killer.

"Body in the Bathtub" (Monday, January 27, 2020 at 9pm): Fresno mattress factory manager James Blanco worked to provide the American Dream for his employees, but when he's gunned down in the shower, investigators must find out if he was betrayed by a disgruntled worker.

"Overtime Overkill" (Monday, January 27, 2020 at 10pm): Catherine Marlow's ambition to travel the world meant working the occasional weekend, but her dedication is her downfall when she's killed in the office on her day off.
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A second season of VENGEANCE: KILLER COWORKERS premiered on Sunday, October 9, 2022 from 9-11pm ET/PT on HLN, with back-to-back new episodes. Season 2 episodes include:

"Death's a Drag" (October 9, 2022 at 9pm) When a young accountant disappears, police must examine the world of drugs and drag clubs to find his killers.

"Clocked Out" (October 9, 2022 at 10pm) The investigation into the brutal death of a technology mogul leads police to uncover a bizarre plot of workplace revenge and identity theft.

"Strangled Sweetheart" (October 16, 2022 at 9pm) A Texas community is stunned when a single mother is found murdered inside her burning car, and suspicion turns to the father of her child.

"All for Himself" (October 16, 2022 at 10pm) When a young woman denies his affections, a jilted manager makes sure that his beautiful employee can't love anyone else.

"Unholy Desires" (October 23, 2022 at 9pm) The brutal slaying of a well-loved priest leaves his parish wondering who wielded the knife that killed him.

"Colleagues in Crime" (October 23, 2022 at 10pm) When two young men are found shot to death, police follow a trail to two suspects who call themselves the modern day "Bonnie and Clyde."

"Dollar Store Deception" (October 30, 2022 at 9pm) When a loving father is shot during a home invasion, investigators suspect that a good deed may have been his downfall.

"Hit for Hire" (October 30, 2022 at 10pm) Police investigating a deadly office shooting uncover hatred for the boss and secrets between coworkers.

"Forged in Blood" (November 6, 2022 at 9pm) After a Southern Illinois businessman disappears, police expose workplace affairs that may have been deadly.

"Unsafe in the Office" (November 6, 2022 at 10pm) A rising quality control manager is killed in her office, leading police to a disturbed coworker with a penchant for murder.