Menashe Everett is a tormented man. He's ruled by depression and addiction. He's haunted by his past. At 37, he barely holds onto his job and lives in a haze of blurred reality. But to many in his life, he's their only hope. For the past ten years, Menashe has been acting as a counselor to similarly afflicted clients who agree to his unorthodox brand of pseudo-therapy. After a grim but revelatory trip to Las Vegas in his late twenties, Menashe decided to open up a "glass museum"-an underground safe place where clients can vent their anguish by destroying rooms filled with clear glass art. The museum brings hope to those who have not responded to traditional therapy, but also gives Menashe a sense of purpose he desperately needs. Menashe's work is always challenging, but now he's taken on a particularly taxing caseload. Among others, he counsels Austin Gendron, a gruff Vietnam veteran prone to psychotic breaks; Murray Henderson, a timid college student trying to understand his episodes of anger and anxiety; and John Cook, Menashe's best friend. As he works tirelessly for his clients, Menashe must also handle his increasingly complex personal life, which constantly forces him to relive his past and question his abilities as a therapist. Set in Cleveland in the late 1980s, Glass tests traditional ideas of interpersonal responsibility and what it means to struggle with mental illness.