A young opera singer takes over the leading role in the play Macbeth when the lead is hit by a car.  Once Betty takes over the role strange things start to happen.  She is being stalked by a crazed killer who is making her watch each and every murder.  The killer makes her watch each killing by tying her up and placing these little pins taped underneath her eyes, so if she closed her eyes she would cut them up.  Now it is up to her to discover the identity of this crazed killer before it is too late. I had only seen a few Dario Argento films before this one.  Suspiria and Inferno are the two I had seen.  I really didn't care for either one.  I prefered to just watch a Fulci film instead.  Well, I saw this DVD at the store and decided to buy it before seeing it.  This one is much faster paced then Suspiria is.  The first death scene is where the killer grabs this guy and pushes the back of his head through a coat hanger.  The second death was probably the most intense, at least I thought.  This death was the first one ...