3 Act Structure

Act 1
     Stilettos clicking as she walked to her bank office, the quiet building breathing deeply around her.  That is, until a hand grabbed her, dragging her towards the safe.
     "Open it!" the man said.
     She typed the password, feeling a gun in her side.  She reached to push the silent alarm.

Act 2
     Her plans were spoiled as he tied her up and chucked her in a corner.  Three more men entered the safe, he wasn't alone.
     "Stay quiet and we'll spare you," the leader threatened as they began stuffing the money in bags.  His mask slipped.  She gasped and found the gun in her face.
    

Act 3
     "Can't let you live now you've seen my face!" the man laughed.
     The doors banged open.
     "Police!"
     Shots were fired.  She ducked, crying.
     "You're alright," a cop said.
     She looked up, "how?"
     "They tripped the silent alarm."......

     Click.  Her heels echoed in the silent building.  In her head she saw the bodies of four robbers.