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Season 1 – The Vanishing Triangle

Play trailer 1:03 Poster for Season 1 – The Vanishing Triangle Sep 2023 Crime Drama Mystery & Thriller Play Trailer Watchlist
Watchlist Tomatometer Popcornmeter
Tomatometer 4 Reviews 44% Popcornmeter Fewer than 50 Ratings
Reporter Lisa Wallace and Detective David Buckley investigate girls vanishing and a killer's return.

Where to Watch

The Vanishing Triangle — Season 1

Critics Reviews

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Christopher Stevens Daily Mail (UK) Aug 4, 2025
4/5
If the drama stayed closer to the real facts, it would be stronger for it. But there’s enough here to keep me gripped. Go to Full Review
Pat Stacey Irish Independent Mar 27, 2024
The way it exploits real-life trauma and tragedy in the service of a hokey thriller filled with one-dimensional characters leaves a deeply unpleasant taste. Go to Full Review
Melissa Camacho Common Sense Media Nov 7, 2023
4/5
The Vanishing Triangle is an overall well-produced thriller that is worth the watch. Go to Full Review
Tim Stevens The Spool Oct 27, 2023
The Vanishing Triangle demonstrates an understanding of that delicacy [of being respectful to victims] while still seeking to dramatize the era. Go to Full Review
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Audience Reviews

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Marie M @McMullenm Feb 28, 2026 Started off promising but as already mentioned gay sex scenes seem just thrown in and out of kilter with main story , spoils it . See more Smaller P @RT08193322 Jan 11, 2025 Six episodes of fairly standard 1990s-style reporter and cop drama — full of endangered women, bombshell news articles, family drama, and convenient recalled memories — builds to the most unsatisfying ending possible. The concept of the unresolved twist was bad in the first place, and it was executed with a dollop of homophobia. There are plenty of “missing women” series that do better; skip this one. See more Melissa S @RT23845342 Nov 11, 2024 Must see. I have bing watched the first 6 episodes and loved every minute of it. Pulls you in to see what happens next. See more Frank L @RT04975177 Aug 15, 2024 This series goes around the block and has poor story design and sound build. The story ends too abruptly and without a proper resolution. There was no postscript to tell what the end outcome was. Bad, bad, bad... See more Nicholas C @RT42291141 Jun 28, 2024 Straight dog shit… a bunch of go nowhere sub plots and an ending that resolved nothing, acting sucked, boooooo See more Kate B @RT05397035 May 9, 2024 This is one of those shows I keep watching because I think it must get better. "The Vanishing Triangle" doesn't. Characters are one dimensional--except when they go wildly out of character (Lisa's little tantrum at her father's hospital bedside--where the hell did that come from?). The acting is wooden; the actors seem phenomenally bored. The plot is--well, what plot? It wasn't particularly hard to figure out who the bad guy is, but it's impossible to figure out how he has the time to be a serial killer, considering his day job. And that ending--please tell me there isn't a season 2 ahead of us. More bad plotting cannot fix this mess. See more Read all reviews
The Vanishing Triangle — Season 1

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Episodes

Episode 1 Aired Sep 28, 2023 After investigative journalist Lisa Wallace publishes an article about her mother's murder, girls start to disappear; she and Det. David Burkely investigate across Ireland, searching for the missing girls, while the killer taunts Lisa. Details Episode 2 Aired Sep 28, 2023 Lisa's article criticizing the Gardaí for not acting on Amy's disappearance is leaked; David and Det. Brennan chases a lead in Castlemoy; impatient with the police's pace, Lisa risks her life to uncover what that lead is hiding. Details Episode 3 Aired Sep 28, 2023 David tries to get a statement from Teresa and a confession from Bulger; Lisa investigates Bulger; Susan pleads for information on an anonymous informer from the Gardaí. Details Episode 4 Aired Sep 28, 2023 Lisa has to choose whom to save between Susan and Mandy; Chris learns new information that takes Lisa to a strange address, where she discovers incriminating information. Details Episode 5 Aired Sep 28, 2023 David and Brennan target Gough as the potential killer; Lisa tries to connect him to the kidnappings; Gill threatens to blackmail David if he continues his investigation of Gough; Lisa receives a call about her father from the hospital. Details Episode 6 Aired Sep 28, 2023 The investigation is halted; David confronts Gardaí's top officials to expose Gill and Gough, but he finds no support; Lisa and Brennan follow a lead on the killer, investigating an abandoned slaughterhouse. Details
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Season Info

Director
Imogen Murphy
Creator
Ivan Kavanagh
Network
Sundance Now
Rating
TV-MA
Genre
Crime, Drama, Mystery & Thriller
Original Language
British English
Release Date
Sep 28, 2023
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