Alter Ego (1972)
"Alter Ego" is a freaky episode of the television series Ghost Story, which modeled itself after The Twilight Zone, with Sebastian Cabot in the Rod Serling role of host and a focus on the supernatural. Broadcast in 1972, this sixth episode clearly intends to capitalize on Fischer's recent triumph in Reykjavik. The title character is named "Bobby" and naturally plays chess. Who does he play with? Himself, of course -- or an evil version of himself who becomes hell bent on taking over his life. The story-line involving his social studies teacher, Miss Gilden (played by the incomparable Helen Hayes), is every educator's worst nightmare. Dated but mildly diverting, in three 15-minute installments.