One of the great popular successes of recent Broadway history, this ingeniously constructed play offers a rare and skillful blending of two priceless theatrical ingredients—gasp-inducing thrills and spontaneous laughter. Dealing with the devious machinations of a writer of thrillers whose recent offerings have been flops, and who is prepared to go to any lengths to improve his fortunes, it provides twists and turns and sudden shocks in such abundance that audiences will be held spellbound until the very last moment.