Taint of Madness

Taint of Madness is a 1995 role-playing game supplement for "Call of Cthulhu" published by Chaosium.
Contents.
"Taint of Madness" deals with asylums and sanatoriums in detail, lists all the recognized forms of insanity as well as their treatments, and details three fully developed asylums – Bethlehem for the 1890s, Arkham for the 1920s, and Bellevue for the 1990s.
Reception.
Dean Evans reviewed "Taint of Madness" for "Arcane" magazine, rating it a 6 out of 10 overall. Evans comments that ""Taint of Madness" is an interesting, thought-provoking book and, like most of the "Cthulhu" add-ons, is crammed with information. But since most referees prefer to side-step the idle months between scenarios, it's not exactly an essential read."