There are documentaries that revisit a crime, and then there is Into the Deep: The Submarine Murder Case, which practically stumbles into one. What begins as an intimate portrait of eccentric Danish inventor Peter Madsen gradually reveals something far more sinister, as filmmakers unknowingly document the behavior of a man who would go on to murder Swedish journalist Kim Wall. The result is a uniquely unsettling true-crime experience, one that feels less like a retrospective and more like a front-row seat to a chilling unmasking.

More than four years after its release, Into the Deep: The Submarine Murder Case continues to attract viewers eager to witness its disturbing real-life story, prompting many to search for where the documentary is currently streaming.

For viewers ready to immerse themselves in the disturbing events chronicled in Into the Deep: The Submarine Murder Case, the documentary is currently available to stream on Netflix. Subscribers can access the film through both the standard Netflix plan and the ad-supported tier, making it relatively easy to add this chilling investigation to an evening watchlist.

The documentary runs for a concise 87 minutes, but it packs enough unease and psychological tension to linger long after the credits roll. Available in multiple languages, including English, Italian, German, Spanish, and French, the film has remained accessible to audiences across different regions interested in the infamous case involving Peter Madsen and Kim Wall.

Those hoping to find a free streaming option may be disappointed for the moment. The true-crime feature is not currently available through any free-supported services, leaving Netflix as the primary destination for audiences eager to witness one of the genre's most unsettling documentaries firsthand.

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One can hardly be surprised to find Into the Deep: The Submarine Murder Case on Netflix, a platform whose true-crime library is practically built on documentaries that you will not be able to look away from. You could also easily find more titles to watch after the documentary.

Viewers left rattled by Into the Deep: The Submarine Murder Case should make American Murder: The Family Next Door their next stop. Much like the documentary about Peter Madsen and Kim Wall, it strips away dramatic recreations and allows raw evidence to tell the story. Through police bodycam footage, social media posts, and personal messages, the documentary reveals how an apparently devoted family man concealed a horrifying capacity for violence.

Those fascinated by the unsettling contrast between public charm and private darkness will also find plenty to admire in American Murder: Gabby Petito and Don't F**k with Cats: Hunting an Internet Killer. Both productions rely heavily on real footage and digital records, creating the same unnerving sensation that accompanied watching Madsen present himself as an ambitious innovator while a far darker reality lurked beneath the surface.

Those with a taste for stranger twists may prefer American Nightmare, Abducted in Plain Sight, or Titan: The OceanGate Submersible Disaster, each offering its own blend of manipulation, hubris, and disbelief. For a more traditional mystery, Cold Case: The Tylenol Murders remains a compelling choice. Together, these documentaries prove that the most chilling stories are often the ones hidden in plain sight.

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Will you be rushing to watch Into the Deep: The Submarine Murder Case on Netflix? Let us know in the comments!