When Beth is walking to Rob's house at the end of the movie, the scene in the park was made to look like "A Sunday Afternoon on the Island of La Grande Jatte" by Georges Seurat with groups of people around various trees.
Thriller film based on Sarah Alderson's 2020 novel of the same name, which she adapted for the screen.
When Beth is being released by the police, the camera focuses on a bulletin board behind her covered with posts headed with "Nestala!!!". This is Croatian for "missing."