Despite playwright David Lindsay-Abaire's flaccid, repetitive dialogue, director Steve Scott's five cast members find moments of pathos in this insular domestic drama about an upper-middle-class couple's struggle to deal with the accidental death of their four-year-old son. But even unaffected, committed performances can't generate the urgency missing from the script. Like many contemporary playwrights, Lindsay-Abaire too often has his characters explain rather than live their emotional lives, eliminating the kind of ambivalence and ambiguity that would make them unique. Though the play successfully avoids cheap sentiment, it never pushes the characters beyond the well-charted territory of TV-movie trauma. --Justin Hayford a Through 4/15: Wed-Thu 7:30 PM, Fri-Sat 8 PM, Sun 2 PM, Sun 3/25, 2 and 7:30 PM, Goodman Theatre, 170 N. Dearborn, 312-443-3800, $20-$68.