Mark's wife who exhibits erratic behavior and frequently warns that misfortune strikes when the moon is in Scorpio. She is discovered with the murder weapon and ultimately killed by Linda.
Mark and Isabel are married passengers whose relationship is disrupted by the killings.
The plot introduces Mark and his wife, Isabel, as a couple joining the cruise.
Their conflict becomes the final physical confrontation of the film.
Linda discovers Isabel with the grappling hook, and Isabel tries to kill Linda before the two women fight.
Explore the full interactive character relationship map of Moon in Scorpio