Serotonin is Michel Houellebecq’s eighth novel and appears four years after the scandalous and critically successful Submission (2015), a dystopian novel that depicts France under sharia law. In Serotonin, we are again presented with the standard Houellebecquian narrator: white, middle-aged, and middle class, seemingly in the throes of some mid-life crisis of a predominantly – but not exclusively – sexual nature.