Young Leo Lauzon is torn between two worlds - the squalid Montreal tenement that he inhabits with his severely dysfunctional (and largely insane) family, and the imaginative world that he constructs for himself through his writings, where he's Leolo Lozone, son of a Sicilian peasant (conceived in a bizarre act involving a tomato). And his experiences of growing up (especially his sexual development) affect his response to both these worlds..