When Bad Seed cannot find an amazing costume for Halloween night, he postpones trick-or-treating for everyone else until he finds the perfect one.

"Psychologist and criminologist Dr. Gretchen White is a specialist in antisocial personality disorders and violent crimes. She's helped solve enough prominent cases for detective Patrick Shaghnessy that her own history is often overlooked: Gretchen is an admitted sociopath once suspected of killing her aunt. Shaughnessy still thinks Gretchen got away with murder. It's not going to happen again. When a high-profile new case lands on Shaugnessy's desk,...