The Morphs are treated as humanly as possible, while still being imprisoned against their will. At least, those that are sentient. They are not, however, the most dangerous thing the institute is tasked with studying. One day, they lose containment on one of the more dangerous things and it proceeds to do something to the space of the facility, transforming it into a labyrinth and causing full containment breach of all the things they were holding.
This is the perfect opportunity for the Sentient morps to make a break for it, survive the dangers of the warped facility, and walk out into the sunlight again.
Hey son, wanna' learn how ta' make witch balls?