Kumail Nanjiani and The Big Sick. Nanjiani and Gordon are set to write The Doubtful Guest, based on the illustrated book by the late Edward Gorey, with It director Variety reports that Nanjiani and Gordon are teaming up with sibling duo Andy and Barbara Muschietti (The It movies) for The Doubtful Guest. Nanjiani is also set to star in the adaptation of the 1957 absurdist illustrated book by Edward Gorey, which follows a mysterious penguin-like creature who shows up unannounced at a family’s home to stir up trouble and chaos. Here is the synopsis for The Doubtful Guest book (via GoodReads):