Stories that can be used as a thriller

Here are some good ideas I thought of to be used for a thriller movie:


1- Possibly a young girl walking home from school each night, and every night she walks home she feels as if she is being followed. There is a series of events where nothing happens and then the scene switches to her waking up under a bridge with bruises/marks and then you have to decide for yourself what actually happens.


2- I thought the idea of a girl babysitting at home and she keeps hearing noises from upstairs and around the house, and then she goes up stairs to check what's going on and sees nothing. Doors slam and the letterbox opens and she sees a shadow at the front door. Before the parents went out they made sure all the doors were locked, but when she comes back downstairs the back door seems to be wide open with the wind swinging it back and forth. So she goes to get the key and hears and scream, rushing upstairs she checks the childrens bedroom and one of the girls is missing....Why that child? How did the door open?


3- This could be set in a fancy dress shop? or any sort of shop I guess and suddenly he/she gets sent an anonymous text message which threatens her.......and tells her the person is 'watching her' Then she looks round the room and turns around and looks and loads of masks, when suddenly one of them has someone's face behind it and the person runs.