The webcomic Sin Titulo follows protagonist Alex Mackay, who, at the start of the story, discovers a photograph of an unfamiliar woman in his grandfather's possessions and feels compelled to hunt her down.

Lauren Davis of ComicsAlliance described Sin Tutilo as a "noir fantasy": though it suggests the existence of science fiction concepts such as interdimensional travel and "shared cognitive space", many of its visuals are akin to those of a detective novel.

In an interview with Newsarama, Stewart stated that he admires Lynch for his ability to provoke a sense of horror through surrealistic imagery that, to him, feels deeply honest.

[4] Lauren Davis praised Sin Titulo in 2012 for how it weaved its story threads together at the end and for its "slightly disorienting" style, allowing its readers to experience Alex' trials alongside him.

Brown praised Stewart for his ability to capture the feeling of being unsure whether you're awake or asleep, but criticized the manner in which he set up and eventually resolves the mysteries in Sin Titulo, stating that "doesn’t quite do them justice.