A daring jailbreak sets in motion a complex scheme involving mistaken identities and criminal underworld maneuvering. Brendan Behan utilizes a gritty, atmospheric narrative framework to follow the escape of a prisoner and the subsequent chaos that ensues for those involved. The protagonist must navigate the treacherous landscape of Dublin's criminal fringes while evading authorities and managing the fallout of a botched identity swap. The narrative is constrained by the harsh realities of mid-century urban life and the rigid hierarchies of the criminal underworld, forcing characters to make rapid, high-stakes decisions to survive.

Readers and critics frequently highlight the sharp, authentic dialogue that defines Behan's prose style. Discussion often centers on the balance between the suspenseful mechanics of the jailbreak and the author's focus on the colorful, often desperate characters inhabiting the Dublin streets. Many note that the narrative pacing reflects the chaotic nature of the criminal activities depicted throughout the story. The atmosphere is often described as gritty and unvarnished, providing a clear window into the social conditions of the era. Readers appreciate the dark humor woven into the plot, which prevents the story from becoming overly grim despite its subject matter.