The devoted protege of an advertising executive feels betrayed when her boss takes credit for her work. She begins hatching a plot to get revenge, setting in motion a twisted cycle of oneupmanship that leaves them both dangerously obsessed with each other - with lethal consequences. Brian De Palma's thriller, with Rachel McAdams and Noomi Rapace.

The rivalry between the manipulative boss of an advertising agency and her talented protégée escalates from stealing credit to public humiliation to murder.