I love these old Gothic films and sometimes they come up on Youtube complete.
This one is a French take on Sheridan LaFanu’s Carmilla. There have been a slew of them and they rarely resemble the original story at all. The same can be said for Blood and Roses, but it is so beautiful, who cares? If you haven’t seen it, here it is, if you have then you know it belongs in the Gothic Library.
If you want to read Carmilla online, here’s the link to my blog Gothic Faery Tales where it has been serialized with pictures.