A young girl was babysitting some children late one night. Once she put the children to bed she went to watch tv. In the middle of her show the phone rang. When she picked up the phone all was heard was laughing from the other end of the phone. She listened for a minute then hung up.
After a few minutes the phone rang again. This time when she picked it up there was a male voice that answered and said,
"Have you checked on the children?"
The girl asked who he was and in reply he laughed and hung up. She was scared and called the police. When the police showed up they said it was a prank call and to call back if it happens again.
She got another call from the man asking again if she checked on the children, she hung up and the police told her that she should get out of the house immediately, the calls were coming from the upstairs extension, where he already murdered the children.