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Diabolical is a Mystery series that is currently running and has 3 seasons (31 episodes). The series first aired on December 18, 2013. It has moderate reviews from critics and viewers, who have given it an IMDb score of 7.2.
Diabolical is available for streaming on the Investigation Discovery website, both individual episodes and full seasons. You can also watch Diabolical on demand at Philo, Amazon, Hulu, Vudu, Investigation Discovery, FuboTV, Google Play, iTunes online.
- Wednesday 8:00 PM et/pt on Investigation Discovery
- 3 Seasons, 31 Episodes
- December 18, 2013
- Mystery
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/10 - Cast: Anthony Belfiore
TV Shows
Watch Full Episodes of Diabolical
Diabolical Full Episode Guide
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When Samuel Johnson Jr. suddenly vanishes, investigators find themselves face-to-face with two sisters who know something; through a series of interrogations, they reveal an elaborate murder plot meticulously engineered by a puppeteer.
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Three women die of the same mysterious illness, the hunt is on to prove their deaths are no accident. Investigators don't know that they are being played for fools by a sinister killer lurking undetected. There's only one woman who can bring him down.
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In West Bloomfield, Mich., a simple affair between two coworkers turns complex as the two lovers are willing to do anything, even commit murder, to protect their darkest secret.
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Three men die over a span of a dozen years, with no suspicion of wrongdoing and no files charged; but when a deadly car explosion rips through downtown Pensacola, Fla., a new investigation begins; all suspicion points toward just one person.
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A man from Las Vegas was pointed as the person behind the murder of a father, but it's more than just a simple case.
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In 1994, Lake Orion, Michigan is rocked by a vicious murder. At first, the crime is a mystery. But in a small town where everyone knows each other, rumors start flying. Soon, police expose a strange and twisted plot that no one saw coming.
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Air Force veteran Michael Giles disappears along with his savings of $206,000 and detectives discover a woman named Kwaneta Harris has been draining the man's accounts. But, as they dig deeper, detectives uncover a massive conspiracy of greed and murder.
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In 1980, two eerily similar crimes occur 400 miles apart. They both leave young mother dead and an infant child stolen. Years later, police unravel a plot so cold-blooded, it leaves everyone even seasoned homicide detectives in utter shock.
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Federal Heights is filled with fear when a 69-year-old veteran is reported missing without a trace. Police act fast to uncover a diabolical killer with a heinous plot before they can strike again.
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After her home is invaded and her husband murdered, Shaunna Dodd recounts her harrowing ordeal at gunpoint; however, when investigators dig deeper, they uncover a tale of lies, infidelity and shady characters who have wandered into the Washoe Valley.
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After Cynthia Roth drowns in the middle of a crowded lake, investigators uncover a decades-long trail of terror; detectives must take extraordinary measures to catch the killer.
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In Prichard, Ala., loving father Re'Mano Campbell is found murdered in his home; it takes the cunning wit of local investigators to unravel the mystery of who murdered him.
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Penny Knell is admitted to a special care facility, where a devious mastermind is waiting to prey on vulnerable people; when Penny's family gets ensnared in her web, the consequences will be fatal.
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Donna Scrivo alerts the local police, but days pass with no sign of her son anywhere. Then a grisly discovery of a severed human head and body parts along a rural highway reveals an act of shocking violence.
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2011 is off to a rocky start when a beloved Susanville police officer is found dead. What first looks like suicide morphs into a full blown murder investigation when his wife becomes a suspect and detectives uncover a story of love, lust and murder.
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Gina Coccia comes home from work to discover the bodies of her girlfriend, Lynn, and Lynn's nephew, Ronnie, shot and stabbed on the kitchen floor; the investigation leads police to a terrifying act of betrayal.
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On April 17, 2015, a Virginia hunter stumbles upon a grisly discovery in the woods: a woman with an execution style gun shot wound to the back of her head. As detectives begin their investigation, they uncover a twisted web of lies and crimes.
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On April 17, 2015, a Virginia hunter stumbles upon a grisly discovery in the woods: a woman with an execution style gun shot wound to the back of her head. As detectives begin their investigation, they uncover a twisted web of lies and crimes.
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In 2015, Detective Scott Sanderson finds himself solving one of the strangest cases of his career. At its center are a newborn and her missing mother. Before long he'll uncover a diabolical scheme that will destroy the lives of everyone it touches.
