Investigators discovered that Rick Van Thiel had been conducting unlicensed medical procedures — including abortions — in his trailer clinic, treating everything from cancer to STIs.

Dr. Anthony Pignataro became a minor celebrity for offering bargain cosmetic surgeries, but his basement room of horrors soon landed him in court.

World-renowned plastic surgeon and certified expert for the California Medical Board Dr. Terry Dubrow returns as host and executive producer to guide viewers through shocking stories of crimes made by medical professionals.

While Dr. Michael Joseph Swango eventually pleaded guilty to four murders, his victim count may be as high as 60.

After Efren Saldivar's co-workers encountered a string of surprising deaths, rumors began to circulate around Glendale Adventist Medical Center about his “magic syringe.”

To this day, Gerald Rabourn’s remains have not been located by law enforcement.

Co-workers of Donald Harvey often joked that he was the “Kiss of Death” and “Angel of Death,” having no idea he was actually a serial killer.

Kimberly Clark Saenz preyed on patients while they were at their most vulnerable — during their dialysis treatment.  

So many patients died under the care a Clinton, Indiana, nurse that co-workers began to joke that he was the “Angel of Death.” The lethal care Orville Lynn Majors gave to patients was no laughing matter, though, and he was eventually convicted of murder. 

Medical malfeasance, negligence and malpractice are — thankfully — the rare exception, rather than the rule. However, as Oxygen and Dr. Terry Dubrow explore this summer, bad decisions by doctors can have deadly consequences.