Signature and Ireland's renowned Field Day Theatre Company are present the U.S. premiere of Sam Shepard's "A Particle of Dread (Oedipus Variations)." This dark, fragmented, modern-day take on Oedipus Rex premiered in Derry, Ireland, and features a cast of actors from both sides of the Atlantic. Tues.-Fri., 7:30; Sat., 2. Call or visit website for variations in playing schedule.