The play is the first in O’Casey’s “Dublin Trilogy” – the other two being Juno and the Paycock (1924) and The Plough and the Stars (1926). It is set in Dublin in May 1920 during the Irish War of Independence and centres on the mistaken identity of a building tenant who is thought to be an Irish Republican Army (IRA) assassin. Each act takes place in Seumus Shield’s room in a tenement in Hilljoy Square.
Donal Davoren is a poet who has come to room with Seumus Shields in a poor, Dublin tenement slum. Many of the residents of the tenement mistake Donal for an IRA gunman on the run. Donal does not refute this notoriety, especially when it wins him the affection of Minnie Powell, an attractive young woman in the tenement. Meanwhile, Seumus’ business partner, Mr. Maguire, drops a bag off at Seumus’ apartment before participating in an ambush in which he is killed. Seumus believes the bag to contain household items for re-sale. The city is put under curfew as a result of the ambush. The Black and Tans raid the tenement and, at that point, Donal and Seumus discover the bag is full of Mills bombs. Minnie Powell takes the bag and hides it in her own room. The Black and Tans find nothing of note in Seumus’ room, but arrest Minnie Powell, who is later shot and killed trying to escape.
A 1972 televised version of The Shadow of a Gunman stars Frank Converse and Academy Award winner Richard Dreyfuss. In 1973, Alvin Rakoff directs a televised version for BBC Two starring Stephen Rea, Sinéad Cusack and Donal McCann. In 1992 Kenneth Branagh, Stephen Rea and Bronagh Gallagher star in an adaption as part of the 1992 BBC Two Performance series.