Teacher Rachel Stark is testing her students on Romeo and Juliet but they are all dull and disinterested. One of them, Ben, turns in a blank report and shrugs it off. As Rachel leaves, she complains to her boyfriend and the school gym teacher that her students don't care and she's glad that she's quitting in a week because she no longer cares either. She goes outside and sees one of her students, Jose, go by on a skateboard. His face gives off a golden light that only Rachel can see. Puzzled, she gets on a bus and a passenger complains about one of the kids playing his music loudly. Rachel sees the same glow on his face and then he collapses from a heart attack brought on by the stress. She tries to revive him but the glow fades from his face.
At home, Rachel tries to explain to her boyfriend what happened. He figures she's hallucinating due to guilt at resigning, but Rachel insists that the kids will be better off without her.
The next day, Rachel is discussing Romeo and Juliet with her students when they get word that Jose died in a car accident. One student, Brian, callously laughs it off and Rachel sends him to the principal's office. None of the students seem concerned except one, Tony, who quotes Shakespeare on death.
Interested in testing her ability, Rachel goes to the hospital ICU and looks for the glowing light. She finds it on the face of a dying man. Rachel tells the nurse that she's the man's uncle and sits with him. Later she returns home and tells her boyfriend that the dying man had no family so she stayed with him. She's convinced she's not hallucinating but doesn't know what the light means.
The next day at school, Rachel sees the glow on many of the students' faces. She tries to warn Principal Carnes, who doesn't believe her. He figures she's hysterical and notes it's a good thing she's leaving in a few days. He calls for her boyfriend but Rachel insists that her students are in danger. He ignores her and Rachel starts packing to leave. Ben comes in and, having heard about her claims, asks her how many students she thinks are going to die. He asks if she sees the glow on his face and she admits she doesn't. He leaves but Rachel realizes something is wrong. She gets the combination for his locker and discovers journals filled with notes and pictures depicting murder. Carnes arrives but before she can explain, the fire alarm goes off.
Carnes takes her out of the building as Rachel sees more of the lights. Looking up, she sees Ben preparing to shoot down from the roof using a rifle. She runs inside but as she heads for the roof, she sees her own face in a glass case, and it has the same glow. She continues to the roof and confronts Ben. He wonders why she cares, saying the kids hate her just as much as they hate him. He starts to fire at the crowd below, but before he can hit anyone Rachel charges him and they both fall off the roofs to the parking lot below. As she lies dying, Rachel sees the glow fade from the students she saw earlier. Her boyfriend rushes over to comfort her and she says that it's all right. She looks up and says she sees the light... and dies.