Drama · PBS Masterpiece · 2026

Trespasses

Limited Series Stars Lola Petticrew, Tom Cullen & Gillian Anderson Northern Ireland Period Drama Based on the Novel

Trespasses follows Cushla Lavery (Lola Petticrew), a young Catholic schoolteacher and part-time barmaid in 1970s Belfast, whose life is upended when she falls for Michael Agnew (Tom Cullen), an older, married Protestant barrister. Cushla's mother Gina (Gillian Anderson), a widow struggling with alcoholism, warns her away from the relationship, but the pull between Cushla and Michael only grows as suspicion and violence close in around them. Trespasses streams on PBS Passport and PBS Masterpiece in the US.

The four-part drama premieres September 20, 2026, based on Louise Kennedy's bestselling debut novel of the same name.

Trespasses key art — Lola Petticrew, Tom Cullen, and Gillian Anderson

About the show

Trespasses is adapted for television by Ailbhe Keogan in her first lead writing credit, and directed by BAFTA winner Dawn Shadforth.

It's produced by Wildgaze Films — the company behind Brooklyn and An Education — with producer Maria Mulhall and executive producers including author Louise Kennedy and Gillian Anderson, who also stars.

Lola Petticrew as Cushla and Tom Cullen as Michael in Trespasses

About the cast

The ensemble cast includes Martin McCann as Cushla's brother Eamonn Lavery, Emily Taaffe as Betty McGeown, Barry Ward as Victor McIntyre, and Lorcan Cranitch, among others. Trespasses first aired in the UK on Channel 4 in November 2025 to strong reviews before making its way to PBS Masterpiece in the US.

Lola Petticrew as Cushla behind the bar of the Anchor in Trespasses

Setting & filming locations

Trespasses was filmed on location in Northern Ireland, mainly around Belfast city centre, with additional filming in Finaghy, Ballymena, and Holywood. The Lavery family's pub, the Anchor Bar, was filmed at the Ladysmith Arms in Ballymena, whose largely unchanged interior gave the production a ready-made 1970s look. Production ran from autumn through winter 2024.

Cushla and friends walk a Belfast street past British soldiers in Trespasses Gillian Anderson as Gina and Lola Petticrew as Cushla at a family dinner in Trespasses

Where to watch in the US

PBS Masterpiece

4 episodes · Streaming from September 20 · Also airs Sundays, Sept 20 – Oct 11, 10:00pm ET on PBS

Watch on PBS Masterpiece →
Also available: PBS Passport, a free member benefit for eligible PBS station donors

Read the novel behind it

Trespasses

by Louise Kennedy

Get the Book →

Watch the Trailer

More Trailers on British TV Hub — Trailers & Previews →


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