Comtra Theatre, Route 19 in Cranberry Township, presents the melodramatic farce “Varney the Vampire or The Feast of Blood” through Nov. 3. Curtain is at 7:30 p.m. Fridays and Saturdays. Tickets are $12. Call 724-591-8727 or 724-591-5383 or visit www.comtraplayers.com.

REGION

New Castle Playhouse presents the mystery thriller “Postmortem” by Ken Ludwig through Nov. 4 in the Annex Theatre, 212 E. Long Ave., New Castle. Curtain is at 7:30 p.m. Fridays and Saturdays and 2 p.m. Sundays. Tickets are $12. Call 724-654-3437 between 9 a.m. and 4 p.m. weekdays.

The Conservatory Theatre Company will stage “The Producers,” music and lyrics by Mel Brooks, through Sunday in the Rockwell Theater at the Pittsburgh Playhouse, 222 Craft Ave. Tickets are $18 to $20. Call 412-392-8000 or visit www.pittsburghplayhouse.com.Pittsburgh Public Theater’s 38th season begins with “Born Yesterday,” a comedy about political corruption and personal awakening, through Sunday at the O’Reilly Theater, 621 Penn Ave. Curtain is at 8 p.m. today and Friday, at 2 and 8 p.m. Saturday and 2 and 7 p.m. Sunday, with some exceptions. Tickets are $29 to $60; students and anyone age 26 and younger pay $15.75 with valid ID. Call 412-316-1600 or visit www.ppt.org.CLO Cabaret presents “A Grand Night for Singing,” Broadway’s tribute to Rodgers and Hammerstein, through Jan. 20 at the Cabaret at Theater Square, 655 Penn Ave. The evening features more than 30 of Rodgers and Hammerstein’s hits. Curtain is at 7:30 p.m. Wednesdays, 1 and 7:30 p.m. Thursdays, 7:30 p.m. Fridays, 2 and 7:30 p.m. Saturdays and 2 p.m. Sundays. Tickets are $34.75 to $44.75. Call 412-456-6666 or visit www.CLOCabaret.com.