A college student leaps from a bridge, a young mother walks into a lake, a widow clings to a ledge. Impulse. Depression. Illness. Grief. “Here There Is No Moon,” produced by Susan Stone, is a portrait of the suicidal mind from the perspective of those who have survived the bullet, the bottle, the jump --and those who have helped in rescue and intervention. There is the limbo in which some live: Why am I still here? Will I try again? Can I resume the life I almost left? For others, there is relief in having a second chance at life. And then there are the doctors, philosophers, counselors, and poets who grapple with suicide as epidemic, violence, and siren song. But the fundamental question remains: Why does one commit suicide, while another does not? No one really knows the answer. True stories from those who might.