I have a remote question about the title of a British film I first saw on late-night American cable about five years ago. Judging from the film quality, I'd estimate that it was shot somewhere between 1969 and 1971. The plot had to do with a family of four - domineering and abusive father, submissive wife, daughter and son. The scene I remember was the daughter running afoul of the father's rules and being whipped in a rather vicious fashion. The mother and daughter eventually conspire to kill the father and hide the crime. The movie itself was very gripping, and I'd love to have the DVD in my collection, but the problem is that I can't for the life of me remember the title of the film or the names of any of the actors.
I know this is a longshot, but if anyone has any ideas, I'd greatly appreciate the help. Thank you!