I’m not a chemist, but I think you can rest pretty much assured that this is movie fiction.
While you could probably whip up a brew of acids that would dissolve all the muscle, tissue, and bone, it would probably take more than one kind and it would probably take many gallons of it. So you might as well cart the bodies away in the fifty gallon drum that you'll need anyway and throw them in a nearby river.
Any acid strong enough to dissolve human bodies in a short period of time would be insanely dangerous to use. It would probably also rot the plumbing away as well.
Not to mention the fumes, the smell, the exothermic reaction, and any insoluable residues that would remain.