Fiona Richmond,Linda Hayden in The House On Straw Hill (1976)
A novelist (Udo Kier) hires a quiet British country house so that he can work on finishing his latest novel. His agent arranges for a secretary to stay with him, in order to speed up its completion (played by Linda Hayden). However, this turns out to be a big mistake when she reveals that she has actually come to kill him for stealing the manuscript for his last novel from her husband, which drove him to suicide. The housekeeper, Kier's girlfriend (played by 70's sex superstar Fiona Richmond) and 2 local thugs all meet horrific ends as Hayden goes on her killing spree.