Sunday follows, over the course of one day, the stream of consciousness of a fictionalized version of the author's cousin, Thibault. On the day of his girlfriend's return from an extended trip, Thibault wakes up, does nothing, gets James Brown stuck in his head, drinks and smokes, grows paranoid about his relationship, struggles to compose text messages, and watches The Da Vinci Code, all the while avoiding anyone and everyone, descending deeper into his own thoughts and fears. Meanwhile, a former crush and another cousin of Thibault's plan a surprise birthday for him, sending the external and internal on a collision course.

Schrauwen's brilliant comic timing and formal mastery transcends the quotidian nature of the plot. Through use of color, flashback and the dissonance between text and image, the ways in which Schrauwen layers a depiction of human consciousness as lines on paper are infused heavily with slapstick and white-knuckle tension and make for an exhilarating read and breathtaking use of the comics medium.