This would be that trilogy.
# Paranoia (1969)
... aka "Orgasmo" - Italy (original title)
... aka "Orgasm" - International (English title) (literal title)
# The Spider (1969)
... aka "Così dolce... così perversa" - Italy (original title)
... aka "So Sweet... So Perverse" - International (English title) (literal title)
# A Quiet Place to Kill (1970)
... aka "Paranoia" - Italy (original title)
Carroll Baker mania!