Take the grisly murder of a best-selling mystery writer, followed by a comedy of errors kind of investigation; stir in a whacky, whirlwind romance between an embittered, red-haired divorcee and a tough, irrepressible Miami Sun reporter; add the lure of the Florida Keys; then relish the taste of Murder on the Rocks, a "whodunit," with a twist you won't be able to put down.