Research suggests a "Haunted People Syndrome (HP-S)" defined by recurrent and systematic perceptions of anomalous subjective and objective anomalies. Such signs or symptoms are traditionally attributed to "spirits and the supernatural," but these themes are hypothesised to morph to "surveillance and stalking" in reports of "group-(or gang) stalking," We tested this premise with a qualiquantitative exercise that mapped group-stalking experiences from a published first-hand account to a Rasch measure of haunttype anomalies. This comparison found significant agreement in the specific "signs or symptoms" of both phenomena. Metapatterns likewise showed clear conceptual similarities between the phenomenology of haunts and group-stalking. Findings are consistent with the idea that both anomalous episodes involve the same, or similar, attentional or perceptual processes and thereby support the viability of the HP-S construct.