“Sister's Easter Catechism” featuring Maripat Donovan and Marc Silvia will be staged at 1:30 p.m. March 16 at St. Ferdinand Roman Catholic Church's Oldenski Hall, 2535 Rochester Road, Cranberry Township. Reserved seats are $37.50, and general seating is $32.50. Concessions and raffles will be available. Tickets must be purchased in advance by calling 724-779-3986.

Comtra Theatre, Route 19 in Cranberry Township, presents the spy spoof “The 39 Steps” today through March 16. A tiny cast plays an assortment of more than 60 characters as well as the occasional prop and set piece. Tickets are $12. Curtain is at 7:30 p.m. Fridays and Saturdays. Call 724-591-8727 or 724-591-5383 or visit www.comtraplayers.com.

New Castle Playhouse presents “The Main Event,” a comedy about the relationship between a boxer and a dancer, at 7:30 p.m. today and Saturday in the Annex Theatre, 212 E. Long Ave., New Castle. Tickets are $10. Call 724-654-3437 between 9 a.m. and 4 p.m. weekdays.

Pittsburgh Musical Theater, in collaboration with Robert Morris University, presents the musical “Children of Eden” March 7 to 17 at the Byham Theater, 101 Sixth St. Area residents in the show include Brady Patsy of East Brady, Brecken Farrell of Saxonburg, Jessica Ortiz of Penn Township, Amanda Sybert and Daniel Terwilliger, both of Butler; Amy and Andre Parker of Summit Township; and Victoria English of Karns City. Show times are 7:30 p.m. March 7, 8, 9, 15 and 16 and 2 p.m. March 10 and 17. Tickets are $12 to $44 and available by calling 412-456-6666 or visiting pittsburghmusicals.com/tix-eden.Conservatory TheatreCompany presents the musical “Chess” through Sunday in the Rockwell Theater at the Pittsburgh Playhouse, 222 Craft Ave. Curtain is at 8 p.m. today and Saturday and 2 p.m. Saturday and Sunday. Tickets are $18 to $20 and available by calling 412-392-8000 or visiting www.pittsburghplayhouse.com.Unseam’d Shakespeare Company presents “The Complete Works of William Shakespeare (Abridged)” through Saturday at the Pittsburgh Playwrights Theatre, 937 Liberty Ave. All 37 plays will be covered in 97 minutes in this irreverent, fast-paced romp. Curtain is at 8 p.m. today and Saturday with additional shows at 10:30 p.m. today and Saturday. Tickets are $23 in advance or $25 at the door. Senior citizens and students pay $18 in advance or $21 at the door. Call 888-718-4253 or visit unseamd.com.