Unmasking a Killer

TV series · United States

Unmasking a Killer

2018Documentary · Crime

★ 7 / 10 TMDb rating · 2 votes

United States

Where can you watch Unmasking a Killer?

Last checked: Sep 20, 2026, 12:17 AM UTC

Watch Unmasking a Killer (2018) in United States: compare confirmed streaming providers and available ways to watch.

At the last check: Unmasking a Killer is available with a subscription to HBO Max in United States. You can buy Unmasking a Killer digitally from Prime Video and Apple TV. Paid add-on channels also offer this title: Prime Video + HBO Max, Prime Video + CNN All Access, The Roku Channel + HBO Max, and Hulu + HBO Max. They are not automatically included in a base subscription.

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Prime Video

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HBO Max

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Hulu

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Seasons

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Season 1+

Prime Video

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Prime Video

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The Roku Channel

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HBO Max

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Hulu

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HDSeason 1Audio: EnglishSubtitles: English
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Prime Video

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SDSeason 1Audio: EnglishSubtitles: English
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The Roku Channel

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Prime Video

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Prime Video

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HDEpisode 1Audio: EnglishSubtitles: English
$2.99
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Prime Video

Add-on subscription · CNN All Access

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$1.99
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Hulu

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HBO Max

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Episode 1Audio: EnglishSubtitles: English
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Prime Video

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Episode 1Audio: EnglishSubtitles: English
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HBO Max

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Episode 1Audio: EnglishSubtitles: English
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Prime Video

Add-on subscription · CNN All Access

Episode 1Audio: EnglishSubtitles: English
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Prime Video

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HDEpisode 1Audio: EnglishSubtitles: English
$2.99
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Hulu

Add-on subscription · HBO Max

HDEpisode 1Audio: EnglishSubtitles: English
Add-on subscriptionAvailable through Jan 1, 2028
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The Roku Channel

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HDEpisode 1Audio: EnglishSubtitles: English
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Prime Video

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SDEpisode 1Audio: EnglishSubtitles: English
$1.99
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Prime Video

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HDEpisode 1Audio: EnglishSubtitles: English
$2.99
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Prime Video

Add-on subscription · CNN All Access

Episode 1Audio: EnglishSubtitles: English
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Prime Video

Add-on subscription · HBO Max

Episode 1Audio: EnglishSubtitles: English
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Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
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Hulu

Add-on subscription · HBO Max

HDEpisode 1Audio: EnglishSubtitles: English
Add-on subscriptionAvailable through Jan 1, 2028
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The Roku Channel

Add-on subscription · HBO Max

HDEpisode 1Audio: EnglishSubtitles: English
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HBO Max

Subscription

Episode 1Audio: EnglishSubtitles: English
SubscriptionAvailable through Jan 1, 2028
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Prime Video

Add-on subscription · CNN All Access

Episode 1Audio: EnglishSubtitles: English
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Prime Video

Add-on subscription · HBO Max

Episode 1Audio: EnglishSubtitles: English
Add-on subscription
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

The Roku Channel

Add-on subscription · HBO Max

HDEpisode 1Audio: EnglishSubtitles: English
Add-on subscription
Go to provider

HBO Max

Subscription

Episode 1Audio: EnglishSubtitles: English
SubscriptionAvailable through Jan 1, 2028
Go to provider

Hulu

Add-on subscription · HBO Max

HDEpisode 1Audio: EnglishSubtitles: English
Add-on subscriptionAvailable through Jan 1, 2028
Go to provider

Prime Video

Add-on subscription · HBO Max

Episode 1Audio: EnglishSubtitles: English
Add-on subscription
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Prime Video

Add-on subscription · CNN All Access

Episode 1Audio: EnglishSubtitles: English
Add-on subscription
Go to provider

Hulu

Add-on subscription · HBO Max

HDEpisode 1Audio: EnglishSubtitles: English
Add-on subscriptionAvailable through Jan 1, 2028
Go to provider

The Roku Channel

Add-on subscription · HBO Max

HDEpisode 1Audio: EnglishSubtitles: English
Add-on subscription
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HBO Max

Subscription

Episode 1Audio: EnglishSubtitles: English
SubscriptionAvailable through Jan 1, 2028
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Add-on subscription · CNN All Access

Episode 1Audio: EnglishSubtitles: English
Add-on subscription
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Hulu

Add-on subscription · HBO Max

HDEpisode 1Audio: EnglishSubtitles: English
Add-on subscriptionAvailable through Jan 1, 2028
Go to provider

HBO Max

Subscription

Episode 1Audio: EnglishSubtitles: English
SubscriptionAvailable through Jan 1, 2028
Go to provider

The Roku Channel

Add-on subscription · HBO Max

HDEpisode 1Audio: EnglishSubtitles: English
Add-on subscription
Go to provider

Prime Video

Add-on subscription · HBO Max

Episode 1Audio: EnglishSubtitles: English
Add-on subscription
Go to provider

Prime Video

Add-on subscription · CNN All Access

Episode 1Audio: EnglishSubtitles: English
Add-on subscription
Go to provider

Hulu

Add-on subscription · HBO Max

HDEpisode 1Audio: EnglishSubtitles: English
Add-on subscriptionAvailable through Jan 1, 2028
Go to provider

The Roku Channel

Add-on subscription · HBO Max

HDEpisode 1Audio: EnglishSubtitles: English
Add-on subscription
Go to provider

HBO Max

Subscription

Episode 1Audio: EnglishSubtitles: English
SubscriptionAvailable through Jan 1, 2028
Go to provider

Prime Video

Add-on subscription · HBO Max

Episode 1Audio: EnglishSubtitles: English
Add-on subscription
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Check picture and language options with the provider. Comparison within the same offer type, quality, currency and unit. Opens the provider website.

What is Unmasking a Killer about?

Viewers go inside the investigation, the case files and the mind of The Golden State Killer – a man believed to be the most prolific uncaught rapist and serial killer in the nation. With exclusive cooperation from law enforcement and survivors, the docuseries examines the historical and social ramifications of The Golden State Killer’s reign of terror, explore the advances in forensic technology, and highlight the legal changes to our justice system that his crime spree spurred.

Questions about Unmasking a Killer

Can I watch Unmasking a Killer for free?

The last check found no free offer for Unmasking a Killer in United States. A paid subscription is not counted as free.

What picture and language options are available?

Confirmed picture quality: HD and SD. Check each offer for audio and subtitles; options may depend on your device and plan.

Which seasons of Unmasking a Killer can I stream?

Specific season or episode offers for Unmasking a Killer cover seasons 1. Open a season to compare providers and prices. A series-level offer does not automatically confirm every season.