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 and join the cruise.
Isabel and Linda become mortal enemies in the final confrontation.
Isabel is responsible for Allen's death on the yacht.
Isabel murders Burt during the yacht massacre.
Isabel murders Claire during the yacht massacre.
Explore the full interactive character relationship map of Moon in Scorpio