Killer Unknown
What happens when some of the finest investigators in the country come out of retirement to put their collective talents and years of experience towards the most notorious cold cases in Tulsa?
Where to Watch
Available to rent or buy
United States
Currently you are able to watch Killer Unknown streaming on DIRECTV Stream, Discovery+ (Via Prime Video), Discovery+, Hulu, Plex, True Crime Files (Via Prime Video), and Roku. It is also possible to buy Killer Unknown on Prime Video, Apple TV, and VUDU.
'Killer Unknown' Streaming: How to Watch Anywhere
Currently, Killer Unknown is available in the UK, and the US
If Killer Unknown is not available in your country or you're traveling, use NordVPN to access it anywhere. Plus, Reelgood users get 3 months free, making it easier to enjoy your favorite content without interruptions.
| Country | Services | Access with NordVPN |
|---|---|---|
| United States | DIRECTV STREAM, Discovery+, Hulu, Plex (Free), Roku, True Crime Files | ✅ |
| United Kingdom | Discovery+ | ✅ |
| Australia | Not Available | ✅ |
| Canada | Not Available | ✅ |
| New Zealand | Not Available | ✅ |
Streaming availability last updated: 02:49:27 PM, 06/12/2025 PST
More Information on Killer Unknown
What happens when some of the finest investigators in the country come out of retirement to put their collective talents and years of experience towards the most notorious cold cases in Tulsa? Killer Unknown has one or more episodes streaming with subscription on Hulu, streaming on Discovery+, free on Plex, and 6 others. It's a reality show with 6 episodes over 1 season. Killer Unknown is no longer running and has no plans to air new episodes or seasons.
Ratings & Reviews
The Reelgood Score is a comprehensive weighted index designed to evaluate movie & TV quality, deriving its value from a blend of Reelgood user engagement, external ratings metrics expressed through content popularity, and user feedback, including ratings such as "loved," "liked," and "disliked." The score is presented on a scale from 1 to 100, where 100 signifies content that is highly esteemed and positively rated within the community.
There are no lists with this title yet
Add this to one of your custom lists to be the first featured here!
EPISODE GUIDE
Killer Unknown Season 1 Overview
Nov 24, 2018 - Dec 22, 2018Season 1 of Killer Unknown has 6 episodes that are available to stream on Hulu, Discovery+, DIRECTV STREAM, True Crime Files, Roku, Plex (Free) and for Rent or Purchase on 5 Services.
Killer Unknown Season 1 Episodes
S01 E06To Everything, There Is a Season
Dec 22, 2018The Task Forces races to submit the information they've gathered towards the prosecution in the Dena Dean case. Meanwhile, a...
S01 E06 of Killer Unknown is available to stream on Hulu, DIRECTV STREAM, True Crime Files, Roku, Discovery+, Plex (Free) and for Rent or Purchase on 5 Services.
S01 E05 Chasing Truth
Dec 15, 2018On the Dean case, phones are confiscated with a new plan to comb through communications between persons of interest. On...
S01 E05 of Killer Unknown is available to stream on Hulu, Discovery+, DIRECTV STREAM, True Crime Files, Plex (Free) and for Rent or Purchase on 5 Services.
S01 E04 Closing In
Dec 8, 2018Mike Huff narrows his focus to a young man who was Dena Dean's boyfriend in 1998, and the last people...
S01 E04 of Killer Unknown is available to stream on Hulu, DIRECTV STREAM, True Crime Files, Discovery+, Plex (Free) and for Rent or Purchase on 5 Services.
