Abstract
Objective: To highlight issues of adoption and twinship in an unusual case of stalking.
Clinical picture: An ususual case of same gender, serial stalking which began at an early age in a young woman who was one of a set of twins adopted at birth.
Treatment: Insight orientated psychotherapy.
Outcome: Beneficial outcome in context of clear boundaries, therapist selection and emphasis upon legal consequences of behaviour.
Conclusions: Early disruptions to attachments including adoption and twinship may have relevance in some patterns of adult stalking behaviour.