A beloved grandfather vanishes out of the blue. Strange activity in his financial records leads detectives on a chase from California to Mexico, where they reach a devastating conclusion.

A doctor has an unnatural obsession with death. When the FBI gets involved after a string of mysterious deaths, they discover a 20-year-long trail of destruction that leads them on an international hunt to stop a sadistic madman.

When a vivacious college student turns up dead in her home, detectives uncover a deadly, one-sided obsession that leads them on an international chase to catch her killer.

Deception and greed drive a local pharmacist in Kansas City down an evil path, affecting the lives of thousands of helpless and trusting cancer patients who believe they’re getting life-saving treatment.

In 1990, Florida police were notified of an unexplained death at Rosedale Manor Nursing Home. Investigators uncover numerous mysterious deaths linked to the same nurse. Detectives race to stop a serial killer before another life is lost.

The small city of Russellville, Arkansas normally experienced very few drug overdose deaths each year. But in 2000, that number unexpectedly began to skyrocket. What was the origin of these drugs? A dealer or a doctor?

When twelve patients die over the course of 13 days at a nursing home in Florida and then, an employee is stabbed during an alleged break-in, the police are called in to probe deeper. Investigators discover one nurse who hid a destructive past.

After receiving a terminal cancer diagnosis, families turn to a doctor who offers hope and an unorthodox cure. But, they soon learn that the trusted physician may have actually had a hand in their loved one's demise.

In the midst of the emerging opioid epidemic, investigators in Los Angeles look into a cluster of mysterious overdose deaths of young men in their 20’s and discover a Doctor who uses her prescription pad to line her pockets and kill her patients.

A Dallas spine surgeon's God complex puts patients at risk. It's up to fellow medical staff to blow the whistle before more innocent people are victimized.

An arrogant cosmetic surgeon operating out of a basement permanently scars and kills patients, then shocks detectives by attempting to murder a loved one.

When a radical underground practitioner with no medical experience promises a miracle cure online, his victims receive dangerous procedures in an unsanitary trailer sparking an unexplained death and a public health emergency in Las Vegas, NV.

Detectives in Colorado investigate a Naturopathic Doctor after two of his patients develop horrific side effects from dubious miracle treatments. What they uncover is a deadly history of fraud and barbaric, invasive medical treatments.

In order to solidify the secret bond keeping them together, two aids working at a nursing home create a twisted murderous game involving the Alzheimer’s patients they care for.

The lines between medical mistakes and murder are blurred when a devious and defiant doctor refuses to change his ways. A chilling investigation ensues into a string of bizarre deaths at an Arizona cosmetic surgery clinic.

A Glendale, CA, hospital worker confesses to suffocating dozens of his patients. Investigators fear he'll walk free because doctors believe the victims died of natural causes.

When an outbreak of Hepatitis C occurs in New Hampshire, investigators looking for the source of the virus vow to stop a medical madman with an insatiable drug addiction who has subjected hundreds of innocent patients to a slow and painful death.

Dialysis patients' weekly treatments go from routine to fatal without explanation. Police shut down the Lufkin, TX, facility to investigate what, or who, may have turned lethal.

An alarming spike in ICU patient deaths prompts a head nurse to investigate the cause. After examining charts recorded by the hospital staff, her findings send shockwaves through the small Indiana town.

After an orderly is arrested for killing a patient at a Cincinnati hospital, a local reporter gets a tip that leads him to uncover new information about a string of horrifying deaths.