Doctor Strange: The Sorcerer Supreme

In Kathmandu, Nepal, the sorcerer Kaecilius and his zealots enter the secret compound Kamar-Taj and murder its librarian, keeper of ancient and mystical texts. They steal a ritual from a book belonging to the Ancient One, a sorcerer who has lived for an unknown time and taught all at Kamar-Taj, including Kaecilius, in the ways of the mystic arts. The Ancient One pursues the traitors, but Kaecilius escapes with the pages and some of his followers.