You will get this trophy as soon as you finish watching the first few cutscenes of the game, right after you exit your car. 

At the start of the game, you see Mia recording a video for Ethan were she confesses that she lied to him. Here only message is that he needs to stay away and should not come look for her. However, in the next cutscene you see Ethan driving towards a mansion located in Dulvey, Louisiana while having a phone call with an unknown person. He claims that Mia has contacted him to come and get her, while he thought she was dead, because he hadn't heard of her for over 3 years.