I can't stomach the violence in any kind of Mafia movie or war movie or fight movie but for some reason I am crazy for women-gone-loony black-and-white sixties flicks: Whatever Happened to Baby Jane, Hush, Hush, Sweet Charlotte, The Nanny. ..
If you have any bent in this direction at all, you have got to check out this insanely over-the-top William Castle double feature (available on netflix).
Here's Joan Crawford in STRAIT-JACKET (1964), fresh out of the asylum for the axe murders she committed twenty years before.
Another super weird 1961 creepfest starring Joan Marshall/Jean Arless: HOMICIDAL.
At the climactic moment, Castle breaks the fourth wall and introduces a "Fright Break!"