Jason Leon, CEO of Leon Group, hires caregiver Sandy John to look after his comatose wife, Evelyn Wayne, after a tragic car crash. Seduced by the Leon family's immense wealth, Sandy secretly moves her own family into the mansion, living off the Leons like parasites whenever no one is around. But greed soon overtakes her role as a caretaker. Watching Jason’s unwavering devotion to Evelyn, Sandy’s envy festers—until she no longer wants to just serve the Leon family, but to take Evelyn's place as Mrs. Leon herself…