Maggie Kemlich is a blind woman who leads an active, independent life despite her disability. Maggie witnesses robbers murder her husband, Gordon, using a Electroshock weapon. However, with the exception of Det. Mike Tuthill, police dismiss her observations due to the fact that she is blind. Police arrest the men who they believe committed the murder, but Maggie goes public with the fact that she believes they have the wrong men, prompting the murderers to come after her. She then seeks out to identify the true killers, and sets up a trap to enact revenge.