Castle of Evil (1966) is a Science Fiction, Horror, Mystery film that follows the relatives of a recently deceased man gather at his eerie mansion but before his will can be read, they start being murdered one by one. Currently, you can watch Castle of Evil 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 4.0 out of 10 from 10 votes. Fans of science fiction movies may also want to explore similar titles below.