The client is drop-dead gorgeous. Her father is just plain dead—of an apparent suicide. An open-and-shut case, but Tex is willing to do anything to make rent.
Tex and Chelsee meet for a date to celebrate their one-year "friendship anniversary." When Tex tries to put the moves on Chelsee, she stops him dead in his tracks, saying that they need to discuss his ex-wife, Sylvia, and the fact that Tex still wears his wedding ring. Tex reluctantly agrees to tell Chelsee the story of how he and Sylvia met. The story of his first big case.
Six years earlier, Tex has just been kicked out of The Colonel's detective agency, and has gone into business for himself—with no success. Until Sylvia shows up. Her father, Dr. Carl Linsky, has recently jumped to his death from the Golden Gate Bridge. The police ruled it a suicide, but Sylvia doesn't buy it, and she hires Tex to find out the truth.
During his investigation, Tex discovers the deaths of several other prominent members of the scientific community, all of whom, including Linsky, were working on a secret project that must be stopped at all cost—before the world loses its mind.