Fics like back to black

Of all the people to catch him doing something highly illegal, Barty Crouch was not someone he would hope for. Sirius tried to hide the body behind him but there was no point. Crouch had walked in at the worst moment and now Sirius was going to have to kill his baby brother’s best friend to cover his tracks. Or maybe he had just found the perfect partner-in-crime. [Or, Sirius is not normal about his little brother, Barty is just as bad, Regulus is precious, and Remus hates Barty Crouch with a passion]

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