A trio of stage companies has commissioned composer Nico Muhly and playwright Stephen Karam to pen “Dark Sisters,” a new opera about a woman trying to escape a polygamist marriage.

Work is skedded to have its world preem in November 2011 at the Gerald W. Lynch Theater at Gotham’s John Jay College, with a June 2012 presentation on the docket from the Opera Company of Philadelphia.

Gotham Chamber Opera and Music-Theater Group join Philly’s Opera Company in co-commissioning and co-producing the work.

Muhly’s work has included film scores for pics “The Reader” and “Joshua” as well as an upcoming opera commissioned by the Metropolitan Opera/Lincoln Center Theater Opera/Theater Commissions program. Karam’s breakout play “Speech and Debate” launched the Roundabout Underground series in 2007.

Rebecca Taichman (“Orlando,” “The Scene”) is on board to helm “Dark Sisters,” with Neal Goren conducting.

“Sisters” is set among the members of a fundamentalist Mormon splinter sect called the Fundamentalist Latter Day Saints, which continues to endorse polygamy. Cast will be led by Caitlin Lynch and Kevin Burdette.

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