"They can look at the Grand Canal Basin, but they can never drain it because the buildings around it would fall in. What? They did have a look at it anyway, as far as you can look at it, but you like to be able to drain it. God only knows what's down there." — Detective Sergeant Michael Fitzgerald (as reported by Rosita Bolin)
"The actions of this individual, I suppose, would have to be regarded as being suspicious. He's standing outside of the bank center for approximately a half an hour before Trevor Dele arrives." — Detective Superintendent O'Boyle (anonymous investigator)
"I'm delighted that Trevor's case is being looked into again. There's a team of five or six guard-eye that have been appointed to reinvestigate Trevor's case, and I met with them a couple weeks ago. There's no body or no scene for them to go on, so they're prioritizing the CCTV footage of him, which has been taken to the UK where they have more advanced methods of examining it than we do here in Ireland." — Michael Deely (Trevor's father)
The episode details the perplexing disappearance of Trevor Deely, a 22-year-old on the morning of December 8, 2000, in Dublin, Ireland. Following a night of office holiday celebrations, Deely was last seen on CCTV footage after leaving his workplace. Initial investigations explored theories ranging from accidental drowning, given the severe weather that night, to a voluntary disappearance, though evidence supporting these was scarce. The case gained significant traction with the recovery of CCTV footage showing Deely walking down a street and later interacting with another individual near a gate. A key development was the enhancement of this footage in 2017, which identified a man in dark clothing who appeared to be following Deely. This man was later identified and cleared of involvement in 2023, though his presence and actions remain a point of curiosity.
Further investigation involved a hypothetical "Mary Poppins" theory involving high winds and an umbrella, which was largely dismissed due to lack of physical evidence and the practicalities of the situation. The inquiry also delved into Deely's personal life, including a recent solo trip to Anchorage, Alaska, which was ultimately ruled out as a direct cause of his disappearance. Despite numerous tips, extensive searches, and theories involving potential robbery, assault, or even connections to organized crime, no definitive clues to Deely's whereabouts or fate have been found.
The case has been revisited by the Garda Serious Crime Review team, with a focus on re-examining the enhanced CCTV footage and pursuing intelligence from informants. However, as of the episode's recording, Trevor Deely's disappearance remains an open and unresolved mystery, with his family still holding out hope for his return. Authorities continue to appeal for information from the public, particularly those with any details related to the events of that night.