About halfway in to Will Eno's Tragedy, a tragedy (2 p.m. April 5, $12), we began to suspect the playwright was suffering from insomnia. There's a dark, plastic, wandering nature to the play that signals a mind on the edge of--but kept from--sleep. Depending on how recently you've been afraid of the dark, you'll be right back there, hearing your breath, your heartbeat, and strange noises, and the night will seem like a suffocating cold, black ocean, everything and everyone you know a small flicker that is guttering out. more ›