Discover the shocking true story of Dr. Caroline Muirhead, who learns her fiancé is a convicted murderer—and chooses to stay. Premieres April 29 on Netflix.
- April 30, 2026
AceShowbiz - The upcoming Netflix docuseries Should I Marry a Murderer? dives deep into an unsettling true crime story involving love, murder, and difficult choices. Set to premiere on Wednesday, April 29, this three-part documentary presents the real-life account of Dr. Caroline Muirhead, a forensic pathologist who learns that her fiancé, Alexander McKellar, is a convicted murderer. Despite this shocking revelation, she chooses to continue their relationship, raising the provocative question posed by the series’ title.
At the core of the series is the story of McKellar’s confession to Muirhead. He admits to killing an innocent man named Tony Parsons, who was on a charity bicycle ride when struck by a vehicle driven by McKellar and his twin brother, Robert McKellar. Parsons, a 63-year-old prostate cancer survivor, grandfather, and former navy officer, was hit late at night while riding from Fort William to his hometown of Tillicoultry to raise money for prostate cancer research.
The brothers were under the influence when the accident occurred. After the collision, they left Parsons injured at the scene only to return later with a different vehicle. Parsons was still alive but critically wounded. Instead of seeking help, the McKellars buried him in a pit on their farm, alongside hunting trophies, effectively concealing the crime.
Muirhead, upon learning the truth, accompanies McKellar to the burial site. She discreetly marks the location using a can of Sugar Free Red Bull, her preferred non-alcoholic drink, as a secret sign. Determined to bring justice, she reports the information to the police. However, law enforcement moves slowly, prompting her to gather additional evidence herself. Eventually, the McKellar brothers identify her as the informant. Rather than retaliating violently, they forgive her, and she in turn forgives them, although the trauma of the event—and Parsons’ death—casts a long shadow.
The documentary explores the complex aftermath of this incident. McKellar and his brother are eventually imprisoned, while Muirhead struggles with substance abuse involving cocaine and alcohol. Her journey toward sobriety and therapy is chronicled, offering a candid look at the emotional toll of her experience. She has since moved on from her past relationship and is currently involved with a new partner, whom she describes as "kind," implying a stark contrast to her former fiancé’s dark past.
Netflix’s Should I Marry a Murderer? challenges viewers to consider the disturbing question faced by Muirhead: can love survive the revelation of such a grave crime? The title’s answer seems obvious, yet the series reveals the complicated and often irrational nature of human relationships entwined with crime and guilt.
For those intrigued by true crime narratives that blur the lines between affection and horror, the series promises a gripping and thought-provoking watch. It also highlights the real-life consequences of choices made under emotional duress and the long road toward healing after trauma.
Fans of the genre can look forward to this compelling documentary when it debuts on Netflix later this spring, offering a rare firsthand perspective on a chilling crime intertwined with love, betrayal, and redemption.