It's the 10-year reunion for the class of Brooklyn's FDR High School, and the past and present are about to collide. Gina (Gabrielle Wagner), Jenn (Jordan Kai Burnett) and the flashy class slut, Tracy (Anna Hanson), are only minutes into dancing, drinking and girly reminiscences when attentions turn to a promise ring given to Gina long ago on a “special night.” But this piece of jewelry has been lost, so to speak, and returning it to its rightful owner becomes an obsession, wittingly or unwittingly, for everyone. Eric Dodson's book caroms back and forth between 1979 and 1989, telling the why and how of the ring and its importance in the lives of these classmates. It's a clever piece of storytelling (though slightly overwritten) that also includes some surprising plot twists. And it's not all about the gals. Gordy (a fine Mike Irizarry), Smitty (Mark Shunock), Ronny (Johnny Cannizzaro) and Tommy (Matt Valle) also are part of this humorous, improbable tale. The operative word here is fun. Dodson's lyrics and Alan Ross Fleishman's laid-back blend of jazz, disco and R&B music make for easy listening, and director Joshua Finkel's cast turn in solid performances. Doma Theatre and Academy for New Musical Theatre at the NoHo Arts Center, 11136 Magnolia Blvd., N. Hlywd.; Fri.-Sat., 8 p.m.; Sun., 2 p.m.; through Sept. 2. (818) 506-8500,

Fridays, Saturdays, 8 p.m.; Sundays, 2 p.m. Starts: July 28. Continues through Sept. 2, 2012

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