The Ghoul Next Door (Ghost Hunter Mystery #8) by Victoria Laurie

On a well-deserved hiatus from the ghoulish grind of their TV show, Ghoul Getters, psychic medium M. J. Holliday, her boyfriend, Heath, and her best friend, Gilley, are back home in Boston. But there’s no rest for the weary ghost busters. M. J.’s ex comes to her for help—his fiancée’s brother Luke seems haunted by a sinister spirit. The crew sets up surveillance cameras to watch for the possessive poltergeist while Luke is sleeping. But when he goes outside in the middle of the night and returns hours later covered in blood, they are all very concerned—especially when the news reports the murder of a young woman in the neighborhood. Now M. J., Heath, and Gilley must remain self-possessed as they try to stop a wicked ghost whose behavior is anything but neighborly.