Robson Green new series puts him in the role of Joe Ruby, an ex-con and gambler, in One’s daytime mystery set on the Northumberland coast. The first episode airs at 2pm and starts with a body found in a priory, so the cosy-crime label does not soften the opening case.
Green’s character solves crimes alongside Liz White’s DI Rose O’Connell, an Oxford-educated detective who gives the series its sharper procedural edge. That pairing matters because the format leans on a familiar lead, a rural setting and a compact case-of-the-day structure rather than a sprawling serial arc.
Joe Ruby at 2pm
2pm is the slot One has chosen for the launch, which places the series squarely in daytime television rather than peak-time drama. For viewers, that usually means a lighter commitment: a mystery built to be followed without needing a long catch-up.
Robson Green plays a lead who is written against type, with Joe Ruby carrying an ex-con and gambler past into the job of solving crimes. That mix gives the show its friction, because the character’s background is less polished than the detective work around him.
Northumberland coast case
The Northumberland coast setting gives the series more than scenery. It fixes the show in a rural world that fits cosy crime, where the location is part of the appeal and the cases can feel contained rather than procedural and metropolitan.
The first mystery is less gentle than the label suggests: a monk’s body is found in a priory. That contrast is the hook here, because the series invites the viewer in with comfort and then opens with a death that immediately raises the stakes.
Liz White as DI Rose O’Connell
Liz White plays DI Rose O’Connell, who works with Joe Ruby on the coast. Her character’s Oxford background adds a second texture to the team, and it helps the series avoid feeling like a one-note rural character piece.
Sally Phillips’s Hairdresser Mysteries has already set a recent benchmark for this kind of daytime cosy crime programming, and One is clearly staying in that lane. What this new series offers is a familiar crime format with a different lead dynamic, a more coastal setting and a first episode built around a priory death rather than a soft entry into the genre.
The only question that remains on the screen side is scale: how many episodes the series will run for and whether this is a one-off or the start of a longer stretch are not stated. For now, the practical answer is simple — if you want a daytime mystery with a known lead and a sharper first case, this is the one to catch at 2pm.
