Research into typical synopsis

What is a synopsis?

A synopsis is a brief summary of either a piece of written work or a film production.

My Synopsis for my opening

A female nurse adresses her peer stating "see you tomorrow " and the other character reply with a simple "bye" or  "see ya". the nurse then walks out and closes the door behind her. she walks down a corridor, she hears a small  "THUD" sound yet she does not turn around. the nurse walks out of the shot revealing a red hand print on the door she just exited. the nurse is then seen walking down a staircase, she checks her watch and carries on walking.

She reaches the door and is about to open in when she hears a sound, the nurse turns her hed slowly around and the camera pans across to reveal a door open by itself.
the nurse, having witnesses such a strange ordeal, walks into the rooom nervously. the room empty. except for a young Emma crouching at the bottom of some stairs, her face covered by her long black hair. the nurse walks towards her slowly and crouches beside Emma. she speaks softly to her and then gets up, turns around and starts heading back to the door of which she just entered. all of a sudden she hears a noise and so turns her head around, she sees Emma, now standing, much closer to the door. her face is hidden by her black hair and she is wearing her all in one black pychiatirc outfit. the nurse, with a look of worry on her face stands there un sure of what to do and puzzling of how Emma had reached her so fast. tnext Emma raises her hand and reveals a small sharp knife and smiles evilly at the nurse. the nurse then pushes Emma backwards shouting "get away from me you  freak", slams open the door and runs down the corridor. however she trips and falls to the ground. Emma walks over to her slowly and starts to drag her backwards down the hallway, the nurse screams and cries for help but no one comes. then the nurse gets dragged into the room and the door slams shut. there are screams from behind the door and then they suddenly stop. the scene then cuts to the a Emma is painting on, on it is shows the words Emma painted in red liquid (blood).