This Murder Was Staged

It's opening night of a brand-new mystery play, but just as the killer is about to be revealed, the body of the play's director falls onstage instead. In that moment, the theater becomes an active crime scene, and everyone from cast to crew to even the audience becomes a suspect. But how is the intrepid detective supposed to find the killer when everyone and their mother (literally) has a motive to want the demanding director gone?