Night of the Werewolf (1981)
Mircaya: You should watch Erika, Waldemar. Her spirit is false. She's totally evil.
Waldemar Daninsky: I know she's perverse...but she has such beauty!
Karen: Waldemar, why don't we go for them in the monastery and try to destroy them?
Waldemar Daninsky: Only during the night of the Holy Moon will I have sufficient power to destroy her.