Latrine Technician vs. Dark Carnival?

Yep.

After his mother is diagnosed with dementia, Sunday McWhorter needs a job with flexible hours and a company vehicle. It just so happens that the local porta-potty company is hiring.

The job stinks, but it's a solid paycheck that allows Sunday to take care of his mom. Everything goes smoothly until Autumn and the beginning of county fair season, when people start going missing and body parts start being found...inside the very tanks of the porta-potties Sunday is charged with cleaning.

Is there a serial killer? A human trafficking ring? An epidemic of haunted toilets?

Sunday finds out the hard way when the simple job of vacuuming sewage becomes a tussle between worlds.