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.

A string of murders targeting a pizza chain and its employees leads to a nationwide manhunt for a killer hell-bent on revenge.

When a lovers’ spat ends up in the hospital parking lot, a biochemist’s obsession with a coworker and her murderous means are exposed.

When cancer researcher Dr. George Blumenschein ends up admitted at his own Texas hospital, is a toxic work environment to blame?

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.

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.

A shooting at the University of Alabama Huntsville leaves three professors dead and the community questioning how they missed a murderer in their midst.

When three hotel workers don’t turn up for their shift, a bizarre series of discoveries reveals a twisted workplace love triangle.

When the entrepreneurial spirit turns two best friends into mortal enemies, one woman in Florida goes on the run.

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.