Frankie Teardrop by Suicide.

Honestly, one of the most disturbing songs ever about a man who went insane and killed his family. It builds up into bunch of jumpscares and loud synths. Amazing track but I won't listen to it on repeat.

Climbing Up the Walls by Radiohead

It tells a protagonist who gone mad in an asylum and it inspired by an incident of Thom Yorke worked in an asylum. Underrated track in OK Computer.