Keep My Grave Open (1976) 
Whilst not as good as his 'Don't' films, Brownrigg's Keep My Grave Open is still an enjoyable slice of schlocky madness. Camilla Carr puts in a great performance as our crazy sword-wielding woman who lives in an old mansion with her brother/lover who may/may not exist.
Whilst a little predictable, that doesn't stop this one from being a lot of fun, particular the final act where the derangement reaches its peak.
60/100