Tesla Effect begins with Tex Murphy -- the down-on-his-luck gumshoe in the post-apocalyptic future -- regaining consciousness on the fire escape next to his office with a head wound and an injection mark on his arm. With the last seven years of his life wiped from memory, the private eye has no choice but to figure who was behind the mysterious attack and why.

Tex Murphy is the last of the hard-boiled gumshoe detectives living in dystopian post-World War III San Francisco in the 2040s. Tex is an honest and good-natured private investigator with a penchant for bourbon, cigarettes and getting himself into trouble. He runs his P.I. (and dance instructor) business from his apartment/office on the top floor of the Ritz Hotel, located on Chandler Avenue in Old San Francisco. In stark contrast to the sparkling, futuristic New San Francisco, Old San Francisco is a run-down part of town known for its high concentration of Mutants -- a section of the population disfigured by post-war nuclear fallout. Tex has found several friends and allies among the Mutants on Chandler Avenue. His talents as a detective are matched only by his knack for putting his foot in his mouth and bumbling his way into the path of danger. However, using his wits, creativity and a bit of luck, Tex has managed to save the world on several occasions.

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