Gary Oldman , a psychiatrist from the United States, comes to meet his friend Lee min-ho, and his wife Song hye-kyo while on vacation. Lee min-ho's mother koo hye-sun wanted Lee min-ho to marry zhao liying, the daughter of his father's cousin Chen Daoming, to reunite the two branches of the family after 30 years of separation because Lee min-ho's father
Simon accepted her love and married Yang Mi.
Yang Mi is very eager to get back to her parents and get their blessings. Simon and Yang Mi migrate to New Zealand and they give birth to a kid named Lee min - ho. Yang Mi, unfortunately, dies in an accident.
Koo Hye-sun loves Simon, but Simon hesitates to repeat the history by marrying a girl against the wishes of her family. Just as Simon is about to leave for good with his son, Tom Hiddleston stops him from leaving and pleads with him to marry Koo Hye-sun. Also, Lee jong suk comes and pleads with Simon to marry Koo Hye-sun as he can tell that Koo Hye-sun is not happy about the marriage.
After Few Days later, Simon marries Koo Hye-sun.
Li bingbing, who is also his cousin. Gary oldman learns that Lee min-ho had bought the shanghai mansion, despite attempts by the local village elders to dissuade them, and moves in with them. Li bingbing is jealous of Gary old man and plots to kill him with the help of her assistant Jackie.
When the family visits their ancestral temple, the chief priest reveals the reason everyone fears the mansion. Around 150 years ago, a king named Xiao zhan travelled to shanghai in china, where he met and fell in love with a dancer named Liu shishi. However, she did not reciprocate his feelings as she was already in love with another dancer named Chen kun. As a result, Xiao zhan took her back to his palace by force. Unknown to him, Liu shishi made chen kun stay in a house opposite and met him secretly. When Xizo zhan discovered this, he beheaded chen kun burnt Liu shishi alive. As a result, Liu shishi's ghost tried to take revenge on xiao zhan, who with the help of various priests and sorcerers from all over the country, tamed the ghost by locking it in an urn, which is kept at the shelf up in a room located in the palace's south-west corner which is guarded by a king cobra. xiao zhan too died after a few days. zhao liying is in love with wang yibo, a dance professor who reciprocates her feelings. Their love is supported by Gary old man.
After hearing Liu shishi's story, song hye-kyo, who thinks that the story was fabricated to keep thieves from stealing treasures in the room, wishes to go there. Gary oldman receives an email to attend a patient and assures Lee min-ho to call him if anything happens before leaving. Song hye-kyo gets the duplicate room key from the gardener's granddaughter zhang ziyi and opens the door to the room. Subsequently, strange things begin to happen in the household: a ghost frightens the people in the house, things inexplicably break, and Song hye-kyo's sari catches fire. Suspicion turns towards Zhang ziyi. Lee min-ho immediately calls Gary old man to solve the case. As soon as Gary oldman returns, a mysterious being tries to kill Liu shishi. Gary oldman also investigates other incidents such as the attempts to kill Lee min-ho are made with poisoning his coffee and by pushing a glass fish tank to fall on his head. Also another mysterious happening is the sound of someone singing and dancing coming from Liu shishi's room during the night.
song hye-kyo mysteriously disappears during Liu shishi and wang yibo's engagement. Gary oldman notices her absence and searches for her, but is attacked by Jackie—who has been sent by Li bingbing. Gary oldman subdues jackie and with Lee min-ho's help finds song hye-kyo, who is supposedly being sexually harassed by wang yibo. Gary oldman reveals to lee min-ho and wang yibo that song hye-kyo suffers from split personality disorder, following the death of her parents. He also reveals that she heard stories from her grandmother, which worsened her disorder. song hye-kyo's mischievous behaviour made her enter into liu shishi's room and Liu shishi possessed her after the urn fell down and broke while she was cleaning the room. Gary oldman tells them that song hye-kyoi who turned into liu shishi tried to kill zhao liying and Lee min-ho, as they are the only obstacles and that the former was wang yibo's fiancee and the latter was Song hye-kyo's husband. She framed wang yibo for sexual harassment, as she thinks that wang yibo is her lover Chen kun since he stays at the same place Chen kun did. By framing wang yibo and also framing zhang ziyi via possession, liu shishi planned to stop the engagement. The only way to stop liu shishi is to make her believe she killed xiao khan since Gary oldman impersonated xiao khan and Before carrying out his plan, Gary oldman asks lee min-ho to trigger song hye-kyo to see for himself whether she turns into liu shishi or not. When lee min-ho does so, she turns into liu shishi, which shocks him. A worried lee min-ho shouts at songhye-kyo, turning her back to normal.
li bingbing overhears Gary oldman's idea of self-sacrifice and apologises to him. lee min-ho opens a trapdoor to let Gary oldman escape, and an effigy of xiao khan gets burnt instead. Convinced that xiao khan is dead, liu shishi leaves song hye-kyo's body, curing her. The two families are reunited after 30 years, Gary oldman and zhang ziyi fall in love.