Hope Street: One of Our Own (2026): Cast, Story and Release

Prepared by Movies Dock Editorial

Hope Street: One of Our Own brings a violent crime, troubling news for DS Marlene Pettigrew and wedding preparations together in Port Devine. Set within the world of the Hope Street television series, the 2026 mystery thriller returns to an isolated seaside community where familiar faces may hold important secrets.

Hope Street: One of Our Own is a 2026 mystery thriller set in Port Devine, the Northern Irish seaside town at the center of the Hope Street television series. The story begins with a violent crime against a well-liked local, placing the community and its police force under pressure.

For DS Marlene Pettigrew, the investigation carries especially difficult news. Alongside the case, romance and wedding plans add another layer of personal uncertainty, creating a story that combines police work with the complications of life in a close-knit town.

Hope Street: One of Our Own movie details

Story without spoilers

A violent crime committed against a much-loved member of the Port Devine community leads to a police investigation and unsettling developments for DS Marlene Pettigrew. As the officers work through the case, personal events continue around them, including love and preparations for a wedding.

The setting is an isolated seaside community where friends and neighbors may know one another well—or may only think they do. The film’s central mystery is built around the question of how much people can really know about those closest to them, while the investigation unfolds against the continuing relationships of the Hope Street world.

What to expect

This is a compact mystery thriller with a runtime of 1 hour and 27 minutes. Its premise points to a murder investigation rooted in a familiar local community, with police procedure, personal stakes and questions of trust at the center.

As a series finale and a film based on a television series, it also brings together ongoing characters from Hope Street, including DS Marlene Pettigrew, Inspector Eve Dunlop, PC Callum McCarthy, PC Ryan Power and PC Donal Gallagher. The supplied details establish the crime, investigation and wedding plans, but do not reveal the identity of the victim, the solution to the mystery or how the story concludes.

Cast and creative team

Kerri Quinn leads the cast as DS Marlene Pettigrew, alongside Tara Lynne O'Neill as Inspector Eve Dunlop, Niall Wright as PC Callum McCarthy, Finnian Garbutt as PC Ryan Power and Cameron Cuffe as PC Donal Gallagher. The cast also includes Aaron McCusker as Clint Dunwoody, Niamh McGrady as Nicole Devine, Marcus Onilude as Luke Jackson, Katie Shortt as Brandi McClure and Eleanor Methven as Lois Dunlop.

Enda Hughes directs the film, with Paul Marquess credited as writer.

• Kerri Quinn as DS Marlene Pettigrew
• Tara Lynne O'Neill as Inspector Eve Dunlop
• Niall Wright as PC Callum McCarthy
• Finnian Garbutt as PC Ryan Power
• Cameron Cuffe as PC Donal Gallagher
• Aaron McCusker as Clint Dunwoody
• Niamh McGrady as Nicole Devine
• Marcus Onilude as Luke Jackson
• Katie Shortt as Brandi McClure
• Eleanor Methven as Lois Dunlop

Release and production context

Hope Street: One of Our Own is listed as a 2026 release, with a release date of September 25, 2026. It has a runtime of 1 hour and 27 minutes and is classified as a mystery thriller. The production is associated with the United Kingdom and Northern Ireland, and the spoken language is English.

The listed production companies are Long Story TV, BritBox and BBC. The film is identified as a series finale and as being based on a television series, connecting it directly to the wider Hope Street setting.

Production companies: Long Story TV, BritBox, BBC

Hope Street: One of Our Own official trailer

Watch the official trailer on YouTube

Movies Dock view

With its isolated seaside setting, violent central crime and returning police characters, Hope Street: One of Our Own places a community mystery alongside major personal developments for DS Marlene Pettigrew. The wedding plans add a contrasting thread to the investigation without disclosing how either storyline is resolved.

Film data:
TMDB