 Many of his plays focus on characters confronting psychological trauma.In "Le Déclic du destin", a character progressively loses body parts; in "The Dragonfly of Chicoutimi", the central character recovers from aphasia only to learn that while recovering his ability to speak he has lost his native language; and in "La Hache" a university professor is driven insane by his obsession with ideological purity in literature.Tremblay has also taught acting at the Université du Québec à Montréal.