In "One Step Behind" by Henning Mankell, the narrative delves into the themes of despair and exploitation present in modern society. The characters navigate a world filled with challenges, highlighting how some individuals thrive on others' suffering. This sets up a compelling backdrop for a detective story, as the protagonist grapples with moral dilemmas amid rising crime and societal concerns.

Mankell's depiction of "soul-sucking vampires" underscores the idea that certain people profit from the vulnerability and helplessness that pervades society. The book critiques these exploiters, reflecting a broader commentary on human behavior and the ethical responsibilities we hold. The gripping storyline invites readers to confront these unsettling truths about humanity while engaging with a complex plot.