The impact is at once harrowing and thrilling.An elderly inventor, burning with manic creativity, tries to reconcile with his estranged gay son. A bereaved boy draws a thuggish classmate into a relationship of escalating guilt and violence. A genteel middle-aged woman, a long-time resident of a psychiatric hospital, becomes the confidante of a lovelorn teenaged volunteer. Told with Chekhovian restraint and compassion, and conveying both the sorrow of life and the courage with which people rise to meet it, You Are Not a Stranger Here is a triumph of storytelling.