Recs if you like The Psychopath Test: A Journey Through the Madness Industry...

microhistory: the intensive historical investigation of a well defined smaller unit of research (such as an event, community, individual or a settlement); it aspires to "ask large questions in small places"

Dive into first-person perspectives and investigative chronicles that illuminate psychopathy and sociopathy from the inside out.

Nearly every page will have you mouth agape, at points gagging, or otherwise screaming into a pillow. All of them being non-fiction somehow makes it worse.