Set in 1975 Northern Ireland during the height of the Troubles, Trespasses follows Cushla Lavery (Lola Petticrew), a young Catholic schoolteacher whose life becomes entangled with Michael Agnew (Tom Cullen), a married Protestant barrister. Their illicit affair unfolds against a backdrop of sectarian violence, societal pressures, and personal turmoil. As their relationship deepens, Cushla navigates the complexities of love, loyalty, and identity in a divided community. The series delves into the personal costs of forbidden love and the pervasive impact of political conflict on individual lives, offering a poignant exploration of passion and peril in a time of unrest.