Under the Silver Lake

In the trailer for Under the Silver Lake, Sam (Andrew Garfield) spots a beautiful woman (Riley Keough) swimming in the apartment's swimming pool underneath his balcony late one evening. She invites him to join her, and he invites her in. The next day, when he goes to her apartment, she has obviously moved out during the night. Thinking that's incredibly strange, he goes searching for her, especially after he finds something that could be a code in her apartment.