When a vulnerable woman goes missing in the Dublin Mountains, police assume she has committed suicide. But a chance discovery by a group of fishermen kick starts a murder investigation that leads to the door of a very surprising suspect.
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Jun 21, 2025 · 45m
The remains of a woman missing for over a year are found in the Dublin mountains and police suspect foul play. She is identified as Elaine O Hara but with no DNA, eye witnesses or a cause of death the police are concerned they won’t be able to track down her murderer. But the discovery of two mobile phones discarded in a reservoir provide police with vital clues to identify the killer.
Jun 21, 2025 · 48m
Graham Dwyer is arrested for the horrific murder of Elaine O Hara. He denies it and believes he’s covered his tracks so well that there won’t be enough evidence to charge him. But he has underestimated the police investigation. In interview he unwittingly corroborates the police evidence against and is charged with murder. But without a cause of death do the police have enough to convict him?
Quick answers about this season's release timeline and episode lineup.
Murderer: Behind the Mask Season 1 premiered on June 21, 2025.
Murderer: Behind the Mask Season 1 has 2 episodes.
The season opens with Season 1 Episode 1, "Episode 1". It aired on June 21, 2025.
Go to Season 1 Episode 1