In Jacey's past is the Important Man who took away her brother. Now Jacey has David who sometimes transforms into a terrifying beast. Together, they've found a way to live-and to hunt, sniffing out men who prey on the vulnerable. But Jacey and David are about to run into the Important Man again. From Paul Cornell (Wolverine, Doctor Who, Elementary) and Sally Cantirino (Final Girls) comes a haunting story about the monsters that walk beside us all and sometimes lurk within.