After talking about my ideas with my classmates and professor, I came to the conclusion that my idea needed some fixing since it was perhaps confusing the different messages from the real mother and the mysterious messenger. 

Depending on the setting and time I choose (90’s or more actual) I think I could use, instead of a text message, a note on the fridge, assuming the mom was home earlier. This is because the temporal line was strange at first: How can the unknown messenger write the text message with the main character’s phone first and then the mother leave a voicemail saying her flight is delayed? That's my issue with my first idea!

I think that it builds up more tension and it seems much more coherent that someone, who then we know is not the mother was inside the house and left the note, and then the real mother, who was not even home that day since her flight is delayed; this arises more questions to the audience that the other ideas → Who was inside the house? What is going to happen to her?

Corrected idea

• A girl is alone in her house, she comes back from an activity, very tired

• She puts on a scary movie → her I build up tension; she is scared

• She goes to get something from the fridge → she sees a note in the fridge/ she gets a text message from her mom saying that she will be back home at 8 for dinner, that she should shower before she gets home. 

• So… she goes to her bathroom and showers → we hear her singing in the shower. 

• Suddenly, she hears sounds coming from the the kitchen, she thinks it is her mother

• She says: "Mom are you there?", she checks her phone: it's 7:30 pm, and she has a message from her mom - "Sweety, I ran into a friend and we will have dinner toghether!"

Tension! Questions arise → Who is there? What is going to happen?