House of Dark Shadows (1970)

Jonathan Frid, Grayson Hall, Joan Bennett
Directed by Dan Curtis
IMDB

Messiah of Evil or Dead People (1973)

Mariana Hill, Michael Greer, Royal Dano, Elisha Cook Jr.
IMDB

Wizard of Gore (1970)

A truly horrid film, but I did appreciate the red filtered segments in it. It might still be on comcast on demand. Looks like there was a remake as well in 2007 staring Crispin Glover

IMDB