Films similar to 'STALKED'

I have chosen the horror film 'When A Stranger Calls' to compare our opening of the film to. Both films involve a stalker who is unidentified.  In 'When A Stranger Calls', the innocent high school student is babysitting in a big house for two children. She starts getting prank phone calls and automatically this makes her nervous. She locks all the doors to prevent someone from getting in. When the stalker manages to break into the house, the identity is not visible until further on in the film. I think this film is perfect to compare with STALKED.  It both involves an innocent girl and an unidentified stalker.

Another film to compare with this is 'Scream.' In the film 'Scream', there is another student who is home alone and she receives prank calls. The phone calls start to get threatening and she becomes scared.  This time the stalker is a masked person. They wear a black cape with a white ghost mask.