Psychopathy
Psychopathy is a personality disorder characterized by an abnormal lack of empathy combined with strongly amoral conduct, masked by an ability to appear outwardly normal. Neither psychopathy, nor the similar concept of sociopathy, are nowadays defined in international diagnostic manuals, which instead describe a category of antisocial/dissocial personality disorder.
(See Also: Psychopaths/Appearances; Serial Killers)
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