The Head:  

Brilliant & sociopathic young Scientist, Dr Ood, becomes romantically obssessed
with a beautiful but crippled young Nurse. He begins to conduct unethical head
transplant experiments, with the obvious goal of operating successfully on the
Nurse.

German Audio, English subtitles

Stars: Horst Frank, Karin Kernke, Helmut Schmid, Christiane Maybach, Michel Simon

This is the original German film entitled: "Satan's Naked Slavegirl"..an English 
dubbed version of this film was released in the USA in 1961, re-titled "The Head". 
Murky public domain prints of the english version abound, This copy uses somewhat
improved source matirial