When a woman witnesses a murder taking place in a room across the street from hers, she flees from the murderer to the sex club where she works. She gets on stage to do her act, but when she notices the murderer in the crowd, she promptly runs again, this time taking a gun from her boss’s office. The chase goes through city streets and back alleys until she manages to enter a room in a tall apartment building. But the perpetrator finds her even here. During the struggle she shoots and kills him. When she looks out the window, she notices the very man she just killed is observing her, this time as the murderer.