21 Days (2014) is a Horror, Thriller film that follows three filmmakers embark on a paranormal challenge by barricading themselves in a house so haunted, no one has been able to live in for more than 21 days. Currently, you can watch 21 Days on Amazon Video, Apple TV Store, Google Play Movies, YouTube. Streaming availability may vary by country and platform over time. It has a user rating of 4.6 out of 10 from 19 votes. Fans of horror movies may also want to explore similar titles below.