Amer impersonates an educational doctor to enter the Vision School and work there after he plans this with his friend Lotfi, the secretary of the school manager, Zahra. While he succeeds in gaining the trust and love of the people around him, he hides something from everyone

The events take place in a historical context, in the 11th century, where the leader of the Assassins, Hassan al-Sabah, and his leadership of the band that was famous for carrying out bloody assassinations of prominent figures at that stage.