Puti Derrell likes running at midnight. During lockdown it was safe but now lockdown is over and Porohiwi doesn't feel safe anymore - especially when she discovers her estranged grandfather has been murdered and left with a Judas mask on his face. Puti's already got a lot on her plate. She's the new guardian of ten-year-old Bella Rose, who wants to be a private investigator when she grows up, and the new owner of a bookshop called Mainly Crime. But when there's a murder closer to home and another of the grandfather's masks seems to be at the centre of it, Puti and Bella Rose are drawn into the investigation despite themselves. They discover that in matters of blood you often don't get a choice.