IDEAS

Here is a brief story line of my idea:

A teenage girl is sitting at home alone, watching TV downstairs, when she hears peculiar noises and creaks coming from upstairs. She goes upstairs into every room to see where this sound is coming from. She checks every possible room and every possible hiding place yet sees noone. She continues hearing footsteps and decides to call her friend who lives around the corner.
Girl: 'I think someone is in my house, I'm hearing noises upstairs but when I went to check, nobody was there'
Friend: 'Why don't you come to my house and you can stay here for the night, however, leave the phone off the hook incase I hear something'
Girl puts phone down on the table, off the reciever. She walks out the front door making sure she locks it and then runs to her friends house down the road. Just as her friend sees her running to his house from his bedroom window he hears the phone on the other line put back on the reciever.