Once again, some of the folklore elements seem a tad arbitrary and inconsistent. Barnabas manages to kill Roxanne after what appear to be two bloodlettings (and not very long ones at that). Considering how long he strung along his other victims like Maggie and Carolyn without killing them, Roxanne seems to succumb awfully quickly.
Is it me, but I could swear there was music and singing of some sort playing dimly in the background of the scenes in the drawing room, as if somebody had left a radio or something on during the filming? Or was it just one more example of Collinwood's notoriously restless spirits doing their own thing, utterly indifferent to the goings-on of the "live" people in the house?