"Deceptive Practice: The Mysteries and Mentors of Ricky Jay" is a documentary film that delves into the life and career of magician Ricky Jay, exploring how his mentors, including renowned magicians Cardini, Dai Vernon, and Charlie Miller, influenced his development as an artist. Narrated by Dick Cavett, the film offers a unique perspective on Jay's journey, tracing the evolution of his craft under the guidance of these masters.