Home alone for the weekend

Kendra is home alone for the weekend and her husband keeps checking up on her to make sure all the doors and windows are locked. Kendra gets another call from him and she tells him once again that everything is locked up and no one is getting in. Then all of a sudden Kendra hears something down the hall, she hangs up the phone to go check it out. Kendra wakes up and is tied to a chair and can't get away....