The Vanishing Triangle

Synopsis

After investigative journalist Lisa Wallace publishes an article about her mother's murder, other girls start to disappear; she and Detective David Burkely investigate across Ireland, searching for the missing girls while the killer taunts Lisa. Inspired by true events.

First Air Date: 2023-10-26

Last Air Date: 2023-11-23

Number of Seasons: 1

Number of Episodes: 6

Created By: Ivan Kavanagh

Networks: Sundance Now, AMC+

View Technical Specifications on IMDb

Top Cast

India Mullen as Lisa Wallace
Allen Leech as Detective David Burkely
Adam Richardson as Tommy Stephens
Laoise Sweeney as Susan Reynolds
Fionnuala Murphy as Frances Reynolds
Sarah Carroll as Mary Burkely
Philip O'Sullivan as Det. Chief Supt. Gill
Stephen Hogan as Gough
Brian Moore as Mark Bulger
Jana Mohieden as Mandy Clarke

Seasons

Miniseries (2023)

No overview available for this season.

Episodes:

Ep. 1: Episode 1 (2023-10-26)

After reporter Lisa Wallace publishes an article on her mother’s murder, the killer resurfaces hinting at a kidnapping. Lisa and Detective David Burkely start investigating, connecting the killer to the disappearance of a women named Amy Reynolds.
Ep. 2: Episode 2 (2023-10-26)

Lisa’s article is leaked, criticizing the Gardaí for not acting on Amy’s disappearance. David and Detective Brennan chase a lead, Mark Bulger, in Castlemoy. Impatient with the police’s pace, Lisa risks her life to uncover what Bulger is hiding.
Ep. 3: Episode 3 (2023-11-02)

David tries to get a statement from Teresa and a confession from Bulger, while Lisa investigates if Bulger could be the killer. Susan pleas for information from the Gardaí when an anonymous caller claims to have information on Amy.
Ep. 4: Episode 4 (2023-11-09)

Lisa has to choose who to save: Susan or Mandy? Chris learns new information that takes Lisa to a strange address, where she discovers incriminating information that someone tries to cover up. The killer calls later that evening for Lisa’s decision.
Ep. 5: Episode 5 (2023-11-16)

David and Brennan target Gough as the potential killer while Lisa tries to connect him to the kidnappings. Gill threatens to blackmail David if he continues his investigation of Gough. Lisa faces her worst fear with a hospital call about her father.
Ep. 6: Episode 6 (2023-11-23)

The investigation is halted. David confronts Gardaí’s top officials to expose Gill and Gough but finds no support. He reveals a long-hidden secret to his family. Lisa and Brennan follow a lead on the killer, investigating an abandoned slaughterhouse.