Joseph Cotten plays Victor Frankenstein in this Italian exploitation flick. Alas, he is soon killed by his creation and his daughter Tania (played by Rosalba Neri, acting under the name Sara Bay) continues his experiments with the help of Frankenstein's assistant, Charles Marshall (Paul Muller). Tania and Marshall fall in love and decide to transplant Marshall's brain into a much stronger (and younger) body. You know that's not going to end well.
This one is NSFW, what with the sex and the violence and the nudity. Actually, it's the cheesy monster makeup that makes Lady Frankenstein worthwhile IMHO. Check it out and see if you agree.