The Hunchback of Notre Dame

"Master, can't I go outside?" Quasimodo asked. "No. You're an ugly monster," Frollo told him. "Out there, people will laugh at you. This is your sanctuary. When your mother left you here, I brought you inside. I'm your only friend." Why does Quasimodo's master keep him in the tower? Why does Frollo hate the gypsies? Can Quasimodo find out the truth and can he find true love?