Myrna Fermand’s desperate attempt to shield her children from the world through extreme over-protection inadvertently creates a suffocating environment that forces them to flee. Myrna, driven by the void of her own loveless upbringing, constructs a literal and metaphorical iron fence around her family to ensure their safety and privilege. Her husband, Luke, and their children, Karen and Jerry, experience this protective instinct as a restrictive prison that denies them autonomy. When the children eventually escape to London, they encounter a harsh reality that challenges their expectations of freedom. The narrative follows Myrna as she confronts the consequences of her parenting and evaluates whether she can adapt to allow her family the independence they require.

Readers often note that the work captures the stifling atmosphere of a home governed by fear rather than affection. Discussion frequently centers on the complexity of Myrna as a protagonist, as her intentions are rooted in a desire to provide what she lacked, even if her methods are destructive. Critics highlight the author's ability to portray the transition from childhood dependency to the disillusionment of early independence. The pacing is described as deliberate, allowing the reader to fully grasp the weight of the family's isolation before the eventual departure of the children. Many find the resolution to be a thoughtful examination of whether a person can truly change their ingrained behavioral patterns.