Worried about her husband being allergic to dust, Nat, a recently-dead woman, returns as a ghost possessing a vacuum cleaner to clean the house and protect her family from other vengeful ghosts in the house. To become a useful ghost, she needs to get rid of the useless ones.
Unfortunately the movie A Useful Ghost is not yet available on HBO Max.
| Directing | Ratchapoom Boonbunchachoke | Director |
| Writing | Ratchapoom Boonbunchachoke | Writer |
| Production | Cattleya Paosrijaroen | Producer |
| Production | Soros Sukhum | Producer |
| Editing | Chonlasit Upanigkit | Editor |
