Perry Mason receives a phone call from a frantic woman desperate to retain his services, but who then suddenly vanishes during their cryptic phone conversation. The only clues: a newspaper clipping about a blackmail case, and the combination to a safe scrawled on a scrap of paper. The case: a tangled web strung between an eccentric widower with something to hide, a sexy cigarette girl with plenty to cry about, a real-estate broker with his own home on the selling block, a wife, a lover, and too many loose ends. The common denominator – murder, of course. 36th in the series.