Kate Grimshaw is back in the saddle, but this case won't be so easy… Now that Kate has a handle on her powers (mostly), she's back at work, wrangling errant spirits with a side of mundane cleaning to bring in extra income. All is well until one of her cleaning jobs goes awry after she stumbles over the body of a popular shop owner. With no real clues to go by, Kate is again under suspicion from the newest detective in town. That is until someone from Kate's not-too-distant past shows up in Hallow Hills with strange news. New spirits swirl around Hallow Hills, all drawn to the rarity of a new Spirit Walker. But that's not her main concern. Someone is keeping big secrets about their heritage and this murder, leading Kate and her friends down a harrowing path of discovery. Soon Kate will discover a brand new world, one she isn't sure she ever wanted to know about, and she'll have to make some hard decisions to solve the case and save Hallow Hills. Does Kate have what it takes, or is this the final curtain call for her and Mortal Coil Cleaning?