Secret Desire
"A Madman, Driven by Insane Fantasies, Fulfills Them in a Flesh Teasing Orgy"
A daughter is beaten and violated by a father (who looks like her kid brother), along with the maid, and others. When we last see the father, bound in a fake strait jacket, his hair has mysteriously turned brown, from gray.
Genres: Horror
Directors: Joe Serkes
Writers: Joe Serkes
IMDB: tt0126024