“Afraid of the Dark,” a new thriller by an anonymous playwright, has lined up a commercial run at Off Broadway’s Little Shubert Theater with a Broadway-level team of producers including Maberry Theatricals and James Nederlander Jr.

Will Frears (“Still Life,” “Omnium Gatherum”) helms the play, conceived and developed by illusion designer Jim Steinmeyer, producers Devlin Elliott and Tom Kirdahy and the unnamed scribe. Storyline follows four acquaintances visited by an enigmatic stranger.

Design team is composed of Rialto and Off Broadway vets including Neil Patel (sets), Jules Fisher and Peggy Eisenhauer (lights), Janny Mannis (costumes) and Fitz Patton (sound).

Although Elliott and Kirdahy’s Maberry Theatricals has made a habit of producing shows scripted by Terrence McNally (“Ragtime,” “Deuce,” “Unusual Acts of Devotion”), the duo said McNally didn’t write this one.

Maberry, Nederlander and TV producer-director Craig Haffner produce the show at the Little Shubert, where tuner “Lucky Guy” is skedded to run through July 24. “Afraid of the Dark” begins previews Sept. 8 ahead of an opening night still to be scheduled.