《a级b级c级镜片》Ellen Carter's career is on the rocks. She hasn't written a worthy novel since her husband went missing and she was suspected by the police of murdering him. To top it all off, she has reason to believe that her new tenant Leslie Steckler is the serial killer responsible for a number of deaths in the region. But what she doesn't know is that, in the meantime, Steckler has discovered a little secret about her...