This is a serious, emotion-filled production worth attending solely on the grounds that one will learn more about autism.
The title character Lucy is a thirteen-year old autistic child who is reunited with her mother after being raised in the care of her father. It's tempting to come away from the play thinking about what one has learned about the condition. However, while the playright clearly intends to educate the audience in that regard, this is not in any way the exclusive purpose.
The characters - especially Vivian, Lucy's mother - deal with very real human emotions and feelings in attempting to cope with the difficulties of raising an autistic child: denial, avoidance, guilt, exasperation and love.
I enjoyed the performances of the actors. This is worth a try.