Secrets of the what?

Question

There is a cartoon animated movie about these mice or rats or something. They are obviously intelligent and can talk. This intelligence is due to some lab experimenting, where some rats got some sort of needle injections, plus some of the animals have glowing eyes. I do not know the name of the movie, but it goes something like "The Secrets of the _________" and that blank is filled with some acronym like "HSMH" or something. Does anyone know what it is?

Answer 1

NIMH. National Institute for Mental Health.