Daisy, a young woman in her mid-twenties, learns of her inheritance following the death of her grandfather, which includes an old estate rumored to be haunted. Curiosity leads her to the estate, where she finds that her grandfather's spirit resides in the old mansion and is accompanied by the ghost of a mysterious man named William, who warns her of the danger to come.
Daisy's investigation uncovers the estate's dark history, which includes her grandfather's past as a martial arts master and William's role in it. Faced with an imminent threat from a band of treasure-seeking criminals who believe the estate holds valuable artifacts, Daisy is forced to team up with her newly-formed supernatural friends and use her grandfather's martial arts skills to protect the mansion.
Together, they engage in a thrilling battle with the criminals, using their combined abilities to fend off the attackers and ultimately save their home from destruction. Along the way, Daisy discovers life-changing truths about her past and her family's legacy, making her connect with her deceased grandfather and William on a deeper level.