A former temp who misinterprets Derek's friendliness as romantic interest and becomes dangerously obsessed. She stalks him, attempts to seduce him, spikes his drink, fakes a suicide to claim an affair, tricks the babysitter to kidnap their son, and breaks into their home before accidentally falling to her death during a confrontation.
Initial workplace hierarchy established before Lisa's departure.
Explore the full interactive character relationship map of Obsessed