It’s a fallacy that addiction can be cured by a stint in rehab. Anyone celebrating sobriety can affirm that the process of recovery takes decades—and is often lifelong. Nevertheless, a rehab experience can trigger a life-changing awakening. This unpredictable process is at the center of Spike Manton and Harry Teinowtiz’s Another Shot, a poignant exploration of Teinowitz’s alcoholism and treatment. Director Jackson Gay keeps the play teetering between denial and acceptance, and between comedy and tragedy.