Diabolical 2018
- Status
- Returning Series
- First Aired
- January 1, 2018
- Last Aired
- May 12, 2020
- Format
- 3 seasons · 30 eps
- Total Runtime
- ~21 hours (42 min/ep)
- Network
- Investigation Discovery
- Where to Stream
- HBO Max Amazon Channel, Philo, Discovery+ Amazon Channel
What is Diabolical?
Topic: Television series "Diabolical" (2018). Role: Meticulous television and film archivist.
- Type
- TV series
- Year
- 2018
- Status
- Returning Series
- Episodes
- 30
- Runtime
- 42 minutes
- First aired
- Jan 1, 2018
- Last aired
- May 12, 2020
- Original language
- EN
- Origin
- CA, US
- Networks
- Investigation Discovery
- Genres
- Crime, Documentary
- Updated
At a glance
- Rating
- ★ TMDB users: 8.0/10 from 2 votes
- Format
- 3 seasons · 30 episodes
- Episode runtime
- ~42 minutes
- Status
- Returning Series
- Network
- Investigation Discovery
Where to watch in United States
Stream
Discovery+ Amazon Channel
Discovery+Stream
Discovery+Stream
TimvisionDiscovery+Discovery+ Amazon ChannelStream
HBO Max Amazon Channel
PhiloDiscovery+ Amazon Channel
YouTube TV
Investigation Discovery
HBO Max
Discovery +Free
Spectrum On DemandWith ads
The Roku Channel
Plex
Plex Channel
Tubi TVBuy
Amazon Video
Apple TV Store
Google Play Movies
Fandango At HomeStreaming availability data provided by JustWatch via TMDB. Availability changes by country and date; verify on the provider before subscribing or purchasing.
How long to binge?
Estimate the schedule using 30 episodes and an average 42-minute runtime.
Trailer
No official trailer is available for this title yet.
Find the trailer on YouTube ↗Overview
Topic: Television series "Diabolical" (2018).
Role: Meticulous television and film archivist.
Constraints:
Use ONLY verifiable facts from provided SYNOPSIS and SOURCES.
No inventions (names, dates, counts, awards, ratings, etc.).
No markdown, asterisks, headings, or bullet points.
Neutral, encyclopedic prose in plain text.
Word count: 150-190 words.
First sentence must not contain spoilers.
Sources analysis:
[1] TMDB: "Diabolical (2018)", TV-14, Crime and Documentary. Synopsis: Docuseries delving into the minds of murderers, asking "Why did they do it?". Acts committed with extreme premeditation. Law enforcement taps into methods of masterminds with insights from forensic psychologists.
[2] IMDb: "Diabolical (TV Series 2018–2020)".
[3] TMDB Cast/Crew: Repeats synopsis.
[4] Variety: "'The Boys: Diabolical' Trailer". Voice cast: Awkwafina, Michael Cera, Don Cheadle, Chace Crawford, Kieran Culkin, Giancarlo Esposito. Produced by Amazon Studios and Sony Pictures Television Studios, with Titmouse, Kripke Enterprises, Original Film, and Point Grey Pictures.
[5] Screenrant: Mentions Kieran Culkin.
[6] Dateline NBC: Irrelevant (mentions "diabolical scheme" in a different context).
*
Should you watch it?
“A gripping exploration of crime and documentary that commands attention through bold storytelling and immersive performances.”
- Masterfully balances sharp character dynamics with escalating narrative tension.
- High production value and confident direction keep each chapter visually arresting.
- Rich thematic depth offers plenty of reward for attentive viewers.
- Deliberate pacing requires patient investment before the overarching mystery unravels.
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Frequently asked questions
Where can I stream or watch Diabolical online?
Diabolical is currently available to watch or stream on HBO Max Amazon Channel, Philo, Discovery+ Amazon Channel, YouTube TV. Check our live regional availability tracker above for latest direct streaming, subscription, rent, or purchase options.
Is Diabolical worth watching?
Diabolical holds a community rating of 8.0/10 based on 2 verified viewer ratings. It offers engaging Crime, Documentary for fans of the genre.
How many seasons and episodes are in Diabolical, and how long does it take to binge?
Diabolical spans 3 seasons and 30 total episodes. A complete watch takes approximately 21 hours (at an average of 42 minutes per episode).
Which episodes of Diabolical are essential mytharc vs. filler?
Our interactive episode classifier tags all episodes of Diabolical by narrative importance: Crucial Mytharc (season premieres, finales, and canon turning points), Character Core, and Side Quest / Filler. Use our interactive checklist above to filter out standalone detours.
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