Erotomania, or the "de Clarembault's Syndrome" is an uncommon condition characterized by the presence of one or more non-bizarre delusion of being loved at a distance and the relative absence of associated psychopathology. Typically, patients are unaware of the psychiatric nature of the condition. Although the prevalence is low, delusional disorder is not rare. Generally these cases respond to antipsychotics, especially to pimozide. In this paper, a 42 year-old woman with erotomania and cannabis abuse who responded to low-dose of quetiapine (150 mgs per day) is reported.