7 Stages Theatre begins its festival of provocative plays by England's award-winning Caryl Churchill on Oct. 13 with A Number, a drama about a young man who discovers that he was cloned by his father 35 years ago. The festival continues through October and November with staged readings and a full production of Churchill's Far Away. $10 previews Thurs.-Fri., Oct. 13-14. $20-$25 beginning Oct. 15. Thurs.-Sat., 8 p.m.; Sun., 5 p.m. Through Nov. 9. 1105 Euclid Ave. 404-523-7647. www.7stages.org.