Thicker Than Water

CBS Radio Mystery Theater "Thicker Than Water" is a Mystery from Tuesday, September 17, 1974.

Lawyer Nicholas Wedge, who specializes in defending accused muggers, seems certain to lose a case—eyewitnesses saw young Benny Bleeker with a knife at the time the victim, who later died, was mugged. To prove to the jury—and himself—that Benny was not involved, Wedge volunteers to dip Exhibit A—the knife—into a solution of reduced phenolphthalein, the most sensitive of all blood detection chemicals. If the liquid turns pink, it’s all over for Benny.