The Charmed Ones are in Hollywood for a big bash hosted by Kevin Peterson, an old flame of Paige's. Kevin admits that he got the mansion cheaply owning to rumours that it was haunted, and so when ghostly goings-on start almost immediately, everyone assumes that Kevin is behind the 'haunting'. But he tells them that it's nothing to do with him, and when partygoers start to disappear and the house seals itself shut, the Charmed Ones realise that something evil is lurking...Can the Power of Three calm the high spirits before it's too late?