Told in a fragmented, stream-of-consciousness voice, the novel follows an unnamed girl from childhood into early adulthood as she grows up in a troubled Irish family. Her life is closely bound to that of her brother, whose serious illness shapes the emotional landscape of their home. From an early age, she navigates fear, confusion, and a deep sense of instability, struggling to make sense of the world around her.

As she matures, her experiences become increasingly marked by trauma, isolation, and complex relationships that blur the boundaries between care, control, and harm. Her internal voice reflects both resistance and vulnerability, capturing the intensity of her attempts to assert identity and agency in circumstances that continually undermine them.

Unflinching and stylistically daring, A Girl Is a Half-formed Thing is a powerful exploration of consciousness, language, and the effects of early experience on a developing self. It is a raw and intimate portrait of survival, where meaning emerges through the fractured rhythms of thought and memory.