Sleepwalk collects the first four issues of Optic Nerve. There's no unified story; it's a collection of vignettes, shorts, and character sketches. Tomine's art is more stylized than photorealistic, almost minimalist in its enjoyment of shadows and lines. Lonely people trying to connect; mysterious moments; regret. Not a feel good experience, not the traditional story arc. Tomine brings the reader right up to the brink, then abandons exposition in favor of suspense.
A surprisingly mature work, considering Tomine began self-publishing it at 16. Recommended.