Gwendolyn Vance loses her eyesight during a catastrophic automobile collision that supposedly spared her mother, corporate titan Josephine Bancroft. Returning home to convalesce, Gwendolyn gradually senses something unsettling about her mother's cold mannerisms, unaware that Josephine was murdered and replaced by her envious identical twin sister Genevieve.
When Gwendolyn's vision quietly recovers, she maintains the pretense of total blindness to observe the usurper's private conversations and forged corporate transfers. Teaming up with trusted company directors Nicholas Mercer and Alexander Hayes, Gwendolyn orchestrates an explosive annual shareholders' meeting presentation to expose the imposter and avenge her slain mother.
