My Girlfriend is a Ghost

Plot: Ethan, the son of a retired A.S.E.C. (Australian Spectral Entity Containment) officer, was sent to inspect an old house, only to find out that the supernatural actually exists and his Dad isn't crazy. But the ghost (Dahlia) a woman who passed away during the 50s, is unaware of her cause of death. Ethan offers to investigate her past while dealing with less friendly ghouls along the way, and worst of all, keeping his Dad from finding out.