When Ann Prentice finds a chance at happiness with a new suitor, her daughter Sarah’s intense possessiveness threatens to destroy their bond forever. Ann, a widow seeking companionship, attempts to navigate the complexities of a second marriage while facing the volatile opposition of her only child. Sarah, driven by a deep-seated need to keep her mother exclusively to herself, employs emotional manipulation to sabotage the relationship. The narrative examines the psychological friction between two women bound by blood yet divided by conflicting desires for autonomy and control.

This work, written under Christie's pseudonym Mary Westmacott, represents a departure from her famous detective fiction to focus on the intricacies of human relationships. The narrative suggests a clinical, observant approach to the domestic sphere, highlighting the destructive power of unchecked emotional attachment. Readers often find the psychological realism of the mother-daughter conflict to be the primary draw, as it avoids easy resolutions in favor of nuanced character study. The prose indicates a focus on the subtle shifts in power and affection that define intimate family connections over time.