SPOILER] In Oculus (2013), Katee Sackhoff's character Marie is seen trying to clean a specific spot on the rug which becomes significant later on. (Details in comments) : r/MovieDetails
Oculus (2013) – BLOOD RED REVIEWS
Oculus' movie review: Low-budget horror film offers effective scares | Movies/TV | nola.com
oculus-movie-review-cursed-mirror-katee-sackhoff-glowing-eyes | The Scariest Things