I know this is probably a common topic. For me, I’m not sure if it’s a “trope” or just totally misinformed writing, but it’s how many authors approach alcoholism. Some examples are Girl on the Train and The House Across the Lake, among HUNDREDS. If anyone else here has struggled with alcoholism, you know it’s not just "i woke up after downing an entire bottle of whiskey but was able to shower, down a cup of coffee, and solve a murder. "
It’s not a book, but this is basically Brooklyn 99.
They also play with this trope, where a character who was just introduced that episode is about to die, and she goes “Now I’ll die before solving my twin sister’s murder, the whole reason I became a cop. It’s my origin story!” To which another cop says “Debbie, there’s no way you’ve ever mentioned that.” One of my favorite one-off characters.