Sturm und Drang
Some stories rely on heavy doses of Sturm und Drang in characters' lives. (I remember that phrase from German lit and rarely get a chance to dust it off and parade it around.) It means "storm and stress." I mean turmoil and angst, all kinds of OUCH stemming from miserable childhoods, physical injury or impairment, and/or psychological trauma. I mean, Holy shit, what more can happen to this poor individual? The plot ends up being soap operatic, a Murphy's Law melodrama in which all kinds of over-the-top stuff can go wrong . . . and does. Or could've gone wrong in the past . . . and has. Maybe with a little PTSD thrown in for good measure.
The BDSM Cure