Murder, mayhem, and a lead actress just plain too hot to trot surround the opening of the smash new Broadway musical Pay Toilets, A Sentimental Journey. And when the body of a murdered playwright turns up in Shubert Alley with a menacing warning note tacked to his chest -- "Beware legends of Broadway, you may be next" -- the cops are on high alert.  There are a bunch of loonies out there with some bizarre notions with respect to ICBM launch codes and their link to the theater district who will stop at nothing, including kidnapping, to derail a middle-aged playwright's first stab at the Great White Way.  Step right up, ladies and gentlemen, and get your tickets to tonight's show, which features a murder mystery, a love story and a scathing satire of the Broadway theater. Hurry, though, for Broadway may at any moment come burning to the ground.