Stalking in the nineteenth century was a dangerous, increasingly violent behavior pattern circulating in society. It was as much a criminal act then as now, and one the Victorian novel exposes as a problematic form of unwanted intrusion. The realist novel of this period alongside its more sensational counterparts not only depicts scenes of close surveillance, obsession, and harassment as harmful. It exposes the inability of social laws to regulate such conduct. I argue Charles Dickens is the most pivotal figure in observing how stalking emerged as not only a fictional motif, but as an inescapable, criminal behavior pattern. Throughout his work and its nuanced characters, Dickens reveals underlying truths about stalking and stalkers. Early books like Barnaby Rudge and The Old Curiosity Shop feature Gothic villains and predatory motifs adapted from prior literary genres. The works of his middle period foreground stalking in the context of the modern city and institutional power. In the final decade of his life, problems associated with unrequited love examine the pathological patterns of romantic obsession in modern stalker archetypes. Such an analysis and its transformative insight perceive crucial truths about unwanted intrusion, social attachment, and problem of predatory behavior.