https://en.m.wikipedia.org/wiki/Misery_literature
Misery literature, also called misery lit, misery porn, misery memoirs and trauma porn, is a literary genre dwelling on trauma, mental and physical abuse, destitution, or other enervating trials suffered by the protagonists or, allegedly, the writer (in the case of memoirs). While in a broad sense the genre is as at least as old as mass-market fiction (e.g., Les Misérables), the terms misery lit and misery porn are usually applied pejoratively to steamy potboilers, schlock horror, and lurid autobiographical wallows of dubious authenticity, especially those without a happy ending.