The story centers on a humiliated detective Ben Chaney (Josh Lucas) who gets a sudden shot at salvation when the ghost of a murdered cellist Corey Little (Lake Bell) solicits his help in finding her killer as he was on a stakeout of a serial killer suspect, Drag Hammerman. As Chaney unravels the truth behind Little's night of murder, a little turn of events revealed the killer to all of the murders, including Little's, to be the very same man all along. and her best friend Dianalle (Amani Phillips).