Published April 29, 2026, 3:30 p.m. ET Should I Marry A Murderer? is a three-part docuseries, directed by Josh Allott, explores how Caroline Muirhead, a pathologist from Glasgow, met and fell in love with Sandy McKellar after meeting him on Tinder in 2020. But almost as soon as they got engaged, McKellar admitted to Muirhead that he and his brother killed and buried someone three years prior. SHOULD I MARRY A MURDERER? : STREAM IT OR SKIP IT? Opening Shot: A scene of two people happily running in a field, with the hills of the Scottish highlands in the background. The Gist: Most of the Should I Marry A Murderer? is told via an interview with Caroline Muirhead, as she discusses how she met Sandy McKellar after the shocking breakup of a nine-year relationship. She laughs and smiles at the recollection of their first date, which took place on the remote highland farm where he worked.…