The story takes place in a ordinary estate. Everyone believes that there are monsters in the estate. A little girl called Hau Yee makes friend with a mysterious monster called Blackie for many years. One day, Hau yee’s cat Bobo is missing. She thinks that Backie takes away her cat so she asks for help from Uncle Gua, who is a master of catching monsters. As time passing by, she finds Uncle Gua is keeping some secrets.
- This is trying the combination with live action and a 3D character of a imaginary creature.