Abbey, DublinThe black humour gets grimmer as two parents grieve the sudden death of their baby and a disturbing family history emerges There are three kinds of sorrow, one character explains in Marina Carr's latest play, which goes on to portray gradations of suffering that seem innumerable. Laced with black comedy in the first half, its grim subject matter is initially kept at a distance in CaitrÃona McLaughlin'…
