The clinic in which the kids are treated for free is the "Folter Clinic". Folter is german for torture.
When Monroe and Nick are having dinner and discussing eating organs, they are eating fava beans. This is a reference to Hannibal Lector's diet in "The Silence of the Lambs."
Opens with the quote "We shall see the crumbs of bread... and they will show us our way home again.", from the fairy tale Hansel and Gretel. Additionally, there are numerous allusions to the tale within the episode, like the names of "Hansen and Gracie."
"Geier" is the German word for "vulture."
"Fuchsbau" is the German word for "foxhole" or "burrow," from "fuchs," meaning "fox," and "bau," meaning "construction."