A teacher is overseeing detention when she begins to feel unwell. A student arrives and she tells him to sit down and get on with his work, all the while rubbing her chest and fanning herself as she begins to break a sweat. He asks if she's ok and she assures him she's fine, but as the class goes on, the heaviness in her chest worsens and she begins coughing, and struggling for air. She gets up and leans against the wall to try to control her breathing, but decides to dismiss the students and head home herself. She makes it back to her desk, where she tries to sign the student's detention s...

A teacher is overseeing detention when she begins to feel unwell. A student arrives and she tells him to sit down and get on with his work, all the while rubbing her chest and fanning herself as she begins to break a sweat. He asks if she's ok and she assures him she's fine, but as the class goes on, the heaviness in her chest worsens and she begins coughing, and struggling for air. She gets up and leans against the wall to try to control her breathing, but decides to dismiss the students and head home herself. She makes it back to her desk, where she tries to sign the student's detention slip but her vision has gone blurry and she's dizzy and disoriented. As she gets up to grab her bag, the whole room is spinning and a massive pain suddenly hits her chest. Gasping for air, she collapses to the floor and begins crawling to the door, desperately calling out for help.