The surprise - and joy - is that the world can seem so vast when approached that way. Or at least it does in Cromer's flawless production of 'The Sound Inside,' a play by Adam Rapp that opened at Studio 54 on Thursday. When I saw its world premiere at the Williamstown Theater Festival in 2018, it was already a gripping small-scale mystery, and a spectacular showcase for its star, Mary-Louise Parker. Now, having been put through Cromer's less-is-everything makeover, it's even more resonant on Broadway: a tragedy about fiction, both the kind we read and the kind we live.