In the tower of a castle that rises above the quiet town, a mad professor creates creepy creatures, to whom he quickly loses all interest. The care of the newcomers falls on Stitch-Head's shoulders. He is the professor's first creation, a friendly guardian of the castle and its inhabitants. Only he is capable of taming the wildest monstrous instincts. But when a traveling circus arrives in the neighboring town, its treacherous director, who specializes in the search for monsters to entertain the public, lures Stitch-Head from his home castle, promising him fame, wealth, and even love.