Sublime to ridiculous

Spending a few days in the rural heart of Brittany, I went for a stroll around town - a town that I have been returning to for many years - and it turned into a stroll down memory lane as I walked past the Chapel of Rest and remembered a well-loved aunt of my wife who was laid out there for us all to bid our final farewells. A very poignant memory. Then I got an image in my mind of the delivery of a nubile young female's corpse to a similar chapel of rest, and one of the employees whispering to another: "Looks like we've got an eater, here." Yet I can't figure out if it's a scene from a film or a book or a joke, and it's bugging me.