WILLMAR — The Barn Theatre production of “A Little Piece of Heaven” opens tonight at the downtown Willmar theater. Written by Matthew Carlin, the story set in a quirky tourist shop called A Little Piece of Heaven tells of an unlikely relationship, according to a synopsis provided by the Barn. ADVERTISEMENTThere’s something odd about the tourist shop named A Little Piece of Heaven and also the shop owners portrayed by Bill Wright, left, and Kellie Wright. “A Little Piece of Heaven” will be staged Aug. 6-9 and Aug. 13-16. Ben Donner, left, as Jared Havens, and Bill Wright, as tourist shop owner Henry, rehearse a scene Monday from the Barn Theatre production of “A Little Piece of Heaven.”