When a young boy dies after falling from a Copenhagen rooftop, his neighbor Smilla Jaspersen refuses to accept the official ruling of an accidental death. Smilla, a woman of Greenlandic and Danish heritage, utilizes her unique cultural knowledge of snow and ice to interpret the physical evidence left at the scene. Her investigation pits her against powerful corporate and scientific interests that seek to suppress the truth about the boy's final moments. The narrative unfolds through a precise, analytical first-person perspective that mirrors Smilla's own detached yet observant nature.

This novel is widely regarded as a seminal work in the development of the Scandinavian noir genre. Critics often highlight the author's ability to combine a gripping mystery plot with profound meditations on identity and the natural world. The character of Smilla is frequently cited as one of the most distinct and memorable protagonists in contemporary crime fiction. Readers often note the atmospheric density of the prose, which effectively mirrors the frigid, unforgiving environments depicted in the story. The work maintains a reputation for its intellectual depth and its refusal to rely on standard genre tropes.