Following a year of therapy, 15-year-0ld Megan vowed never to speak to another ghost. When she moved from Boston to Phoenix, her new friend Izzy asked her to help investigate the 1975 murder of David, her irritating house ghost. Megan internally struggles to keep her promise, only to have it backfire. Determined to get rid of David for good, they found themselves in the middle of illegal and terrifying situations.