Backstage at a Broadway theatre, it's opening night of a new play by famed playwright Clayton Farrell. The director wants to make a last-minute change to the climactic scene of the play. A shot rings out and someone falls dead. Fortunately for the killer, Harry Hunsacker (would-be actor turned would-be detective) has stumbled into the wrong theatre, and things just get a lot more complicated.

XSR:Die! is another of Pegasus Theatre's acclaimed black and white productions, in which everything on stage, from the set the actors themselves, appears to be in black and white.