Should I Marry A Murderer?

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Overview

A fiancée becomes a key witness after staying engaged to a man accused of murder to gather evidence against him in this documentary series.

Media

Should I Marry A Murderer? | Official Trailer | Netflix

Genres:

Crime Documentary

More Show Details

Vote Average: 5.5/10

Vote Count: 9 Votes

Show Popularity: 5.8334

Show Status: Ended

Show Type: Miniseries

Spoken Languages: English

Review

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Insomniacs Reviews
- 01 May 2026 at 2:21 pm

8 Based on 1 Votes
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⭐ Insomniacs Rating: 8/10 THE SUMMARY This three-part docuseries follows the incredible true story of Dr. Caroline Muirhead, a forensic pathologist who thought she’d found her Prince Charming on Tinder. Alexander "Sandy" McKellar seemed like the perfect gentleman until, after their engagement, he dropped a pained bombshell: he and his twin brother had killed a man in a hit-and-run years earlier and buried the body in a "stink pit" on a remote Scottish estate. The series tracks Caroline’s visceral decision to stay engaged to Sandy while secretly working as a covert informant for Police Scotland to help them find the victim's remains and secure justice. THE PROS It hits an 8 because the perspective is entirely fresh, focusing on the pained psychological toll of being a "fiancée turned mole." Caroline Muirhead’s first-hand account is sincere and gripping; hearing a forensic expert describe how she used her own professional skills to trap the man she loved is a total highlight. The atmosphere is thick with a gritty, highland dread, using the isolated Scottish landscape to create a sense of visceral claustrophobia. It’s a punchy, tight three episodes that avoids the usual true-crime fluff, delivering a story that feels honest and deeply personal. The way it explores the desensitized nature of the McKellar brothers’ upbringing adds a pained, fascinating layer to the mystery. THE CONS It stays at an 8 because the pained intensity of the subject matter can be a bit of a slog to process in one sitting. It misses a higher mark because the documentary relies heavily on reenactments that, while well-shot, can occasionally feel like a head-scratcher compared to the visceral power of the real interviews. While the focus on Caroline is epic, the absence of the victim’s family perspective—though understandable—leaves an honest gap in the emotional narrative. Some of the legal details toward the end feel a touch pained and rushed, leaving you wanting a bit more depth on the trial and the eventual fallout for everyone involved. THE VERDICT 8/10. A pained, visceral, and absolutely gripping true-crime series. It’s a fair shout for the most unique documentary on the platform, proving that real life is often more terrifying than any thriller. INSOMNIAC TRIVIA • During her covert work with the police, Caroline actually requested a "date" at a clay pigeon shooting range because she knew it was located near the pained, secret burial site Sandy had previously mentioned.• The bicycle belonging to the victim, Tony Parsons, was hidden behind a waterfall on the estate and, despite pained efforts by the authorities and even Caroline herself, it was never recovered.• Before this series, the pained case was briefly covered in 'The Vanishing Cyclist,' but this is the first time the story has been told through the sincere and pained lens of the woman who brought the killers to justice. THE VIBE Like a cold mist rolling over a peat bog. It smells of damp wool, heather, and the metallic tang of a secret buried too deep.

TV Show Poster

Season 1

3 Episodes

Air Date: 2026-04-29

Videos

Should I Marry A Murderer? | Official Trailer | Netflix

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Should I Marry A Murderer?

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Should I Marry A Murderer?

Comment (1)

Insomniacs Reviews
- 1 May 2026 at 3:21 PM

⭐ Insomniacs Rating: 8/10
THE SUMMARY
This three-part docuseries follows the incredible true story of Dr. Caroline Muirhead, a forensic pathologist who thought she’d found her Prince Charming on Tinder. Alexander “Sandy” McKellar seemed like the perfect gentleman until, after their engagement, he dropped a pained bombshell: he and his twin brother had killed a man in a hit-and-run years earlier and buried the body in a “stink pit” on a remote Scottish estate. The series tracks Caroline’s visceral decision to stay engaged to Sandy while secretly working as a covert informant for Police Scotland to help them find the victim’s remains and secure justice.
THE PROS
It hits an 8 because the perspective is entirely fresh, focusing on the pained psychological toll of being a “fiancée turned mole.” Caroline Muirhead’s first-hand account is sincere and gripping; hearing a forensic expert describe how she used her own professional skills to trap the man she loved is a total highlight. The atmosphere is thick with a gritty, highland dread, using the isolated Scottish landscape to create a sense of visceral claustrophobia. It’s a punchy, tight three episodes that avoids the usual true-crime fluff, delivering a story that feels honest and deeply personal. The way it explores the desensitized nature of the McKellar brothers’ upbringing adds a pained, fascinating layer to the mystery.
THE CONS
It stays at an 8 because the pained intensity of the subject matter can be a bit of a slog to process in one sitting. It misses a higher mark because the documentary relies heavily on reenactments that, while well-shot, can occasionally feel like a head-scratcher compared to the visceral power of the real interviews. While the focus on Caroline is epic, the absence of the victim’s family perspective—though understandable—leaves an honest gap in the emotional narrative. Some of the legal details toward the end feel a touch pained and rushed, leaving you wanting a bit more depth on the trial and the eventual fallout for everyone involved.
THE VERDICT
8/10. A pained, visceral, and absolutely gripping true-crime series. It’s a fair shout for the most unique documentary on the platform, proving that real life is often more terrifying than any thriller.
INSOMNIAC TRIVIA
• During her covert work with the police, Caroline actually requested a “date” at a clay pigeon shooting range because she knew it was located near the pained, secret burial site Sandy had previously mentioned.
• The bicycle belonging to the victim, Tony Parsons, was hidden behind a waterfall on the estate and, despite pained efforts by the authorities and even Caroline herself, it was never recovered.
• Before this series, the pained case was briefly covered in ‘The Vanishing Cyclist,’ but this is the first time the story has been told through the sincere and pained lens of the woman who brought the killers to justice.
THE VIBE
Like a cold mist rolling over a peat bog. It smells of damp wool, heather, and the metallic tang of a secret buried too deep.

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